Переведите некоторые фразы на английский язык? Заранее 10 баллов...

2 первых варианта - ПОЛНАЯ АБРАКАДАБРА! Третий вариант - самый приличный из трёх, видно, что человек старался сам, но и в нём есть погрешности, на мой взгляд. В нём есть лексические, грамматические и орфографические ошибки (yummy, например) .
Мой вариант:
1. How can I get to the domestic (local) airport? How much does this article (item; product) cost?
What is the fare for hydroplane (seaplane)? или How much is the hydroplane (seaplane) ticket?
пояснения: слово fare = "стоимость проезда тариф, плата за проезд", в данном контексте эквивалентно фразе "сколько стоит билет", очень частотное слово в отношении стоимости проезда в любых видах транспорта.

2. What references does this airline (company) have?или What are the opinions of this airline? Can we have seats at the window?

3. What type of airplane is it? Where was it made (produced)? We would like to go on an excursion to see the most significant sights.
Пояснения: Мне кажется, что и по-русски "посетить все самые важные экскурсии" - это лексически неверно построенная фраза. Посетить можно музей, заповедник, площадь и т. п. , а экскурсию посетить нельзя, можно "поехать на экскурсию" или "совершить экскурсию"
Поэтому последнее предложение переделано слегка и буквально звучит по-русски как: "Мы бы хотели совершить экскурсию с целью осмотреть самые главные достопримечательности". (to see the sights — осматривать достопримечательности) .

4. What is the temperature at night and daytime? Is it safe to swim in the South-Chinese sea? What is the water temperature there?

5. How much does mashed potatoes cost? Do you have it? How much is the rice, stuffed fish, French fries,cutlet, peas, jogurt and other delicacies/ yummi things/ tasty things?
Пояснения: Что за рыба из фарша? Может быть, вы имели в виду "фаршированную рыбу"? Я написала именно так.
Котлета переводится на англ. по разному, в зависимости от того, какая именно: котлета (простая) - cutlet, отбивная котлета — chop, рубленая котлета — rissole, мясные котлеты — meat rissoles, рыбные котлеты — fish cakes, картофельные котлеты — potato cakes.
прелести = вкусности - tasty food, delicacies, yummy things, delicious food

6. What is the departure time of the earliest flight from Shanghai to Manila? или What time (when) does the plane fly from Shanghai to Manila? The flight was delayed for 2 hours because of (owing to) the airplane breakdown.

7. Estimated time of arrival или expected time of arrival is ...a.m. / p.m.
Пояснения: Расчитанное время прибытия - такой фразы в русском языке нет, есть "РАСЧЁТНОЕ ВРЕМЯ прибытия".
How can I make a call from the Philippines to Ukraine? How much is it? What numbers should I dial up?

8. What species of fish can be found here? / What species of fish are there in this sea?
Are there poisonous (venomous) species of fish, butterfly fish or firefish and other nasty (bad) species? Are there crabs and lobsters?
Пояснения: poisonous и venomous - синонимы (ядовитый) , берите одно (любое) из этих прилагательных.
butterfly fish и firefish - разные виды крылаток, поэтому 2 названия, так как из предложения не ясно, какой именно вид Вас интересует.

9.Diving instructor... How much is the diving in the open ocean? Is it worth the effort? / или is it a good thing really or of no worth?

10. I have been greatly impressed by the Philippines, I enjoyed staying here very much and I am willing to come here every year. It is a paradise!

1.How to get to the domestic airport? How much does this product / ticket to hydroplane?
2.What feedback on this airline? Can we have a window seat in the plane?
3.What is the type of aircraft? Where is it made (whose production)? We want to visit all the most important excursions
4.How many degrees day and night? There is safe to swim in the South China Sea? What is the temperature of the water there?
5.How much pyur and it do you have? And as for rice, fish from the stuffing, potato fries, steak, peas, yogurt and other delights?
6.How much does it fly the first flight from Shanghai to Manila? The flight was delayed 2 hours due to failure of the aircraft.
7.Calculated time of arrival ...How to call to Ukraine from the Philippines and how much it will cost and how to dial it?
8.What types of fish swim here? There is a lion, poisonous fishes and other filth? Crabs, Lobster?
9.Diving Instructor .. how much is diving in the open ocean? And it's worth it?
10.Philippines I was very impressed and I'm ready to go at least every year here .. This paradise
11.How much sauce and it you have? And how much rice, fish from the stuffing, potato fries, steak, peas, yogurt and other delights?

Перевёл в переводчике.. .

1. How to pass to internal airport? How many there is it a product/ticket on the hydroplan?
2. What responses about this airline? We can have window seats in the plane?
3. What is plane type? Where it is made (whose manufacture)? We wish to visit all the most important екскурсии)) )
4. How many degrees day and night? Here it is safe to bathe in this South China sea? What water temperature there?
5. How many costs пюрь and it at you is? And after what rice, fish from forcemeat, a potato-fri, a cutlet, горошок, yoghurt and other delights?
6. In the first flight from Shanghai to Manila how many takes off? Flight was late at 2 o'clock from for plane breakages.
7. A raschitannoe arrival time....How to call to Ukraine from Philippines and how many it will be costs? How to type it?
8. What выди fishes here float? There is крылатки, poisonous рыби and прочия muck? Crabs, the Lobster?
9. The diving instructor. How many there is a diving at open ocean? And still it is worthy of it?
10. Philippines have very much impressed me also I is ready to go though every year here. This Paradise Place!
11. How many costs to mashed potatoes and it at you is? And after what rice, fish from forcemeat, a potato-fri, a cutlet, горошок, yoghurt and other delights?

http://www.translate.ru/ тебе в помощь.

1. Как пройти до внутреннего аеропорта? сколько стоит это изделии/билет на гидроплан?
How can i get to the internal terminal/airport? How much does this thing/ticket for hydroplane/seaplane cost?
2.Какие отзывы об этой авиакомпании? Можем мы иметь места у окна в самолете?
What is a feedback about this airline? Can we have window sits?
3.Какой это тип самолета? Где это сделано (чье производство) ? Мы хотим посетить все самые важные екскурсии)) )
What is the type of the plane? Where is it made/produced in? We would like to visit all important excursions/sighseens
4. Сколько градусов днем и ночью? Тут безопасно купаться в этом Южно-Китайском море? Какая температура воды там?
What is the temperature at night and daytime? Is it safe to swim in South-Chinese sea? What is the water temperature there?
5.Сколько стоит пюрь и оно у вас есть? А по чём рис, рыба из фарша, картошка-фри, котлета, горошок, йогурт и другие прелести?
How much does pure cost? Do you have it? How much is rice, stuffing fish, french fries, cotlette, bins, jogurt and other yummi things?