Будущие времена. Выберите правильную форму глагола, стоящего в скобках. За ранние спасибо

1)They (spend) their vacations is Spain next summer
a)Will spend b)will be spending c) will have spent
2)This tine next month we (sit) on a beach
a)Will sit b) will be sitting c) will have been sitting
3)The students (discuss) the problem before the teacher comes
a)Will discuss b) will be discussing c) will have discussed
4)In a year my friend (work) at the people’s court
a)Will have worked b) will work c) will have been working
5)By Christmas I (work) for this company for 20 years
a)Will have worked b) will have been working c) will be working
6)My son (pass) his entrance exams from 9 till 12 tomorrow
a)Will pas b)will be passing c) will have passed
7)I’ll come at 7. –OK, I (wait) for you
a)Will wait b) will be waiting c)will have been waiting
8)I hope I (fond) a job by the and of the year
a)Will fond b) will be finding c) will have found
9)The train (leave) by the time we get to the station
a)Will leave b) will have left c) will have been leaving
10)She (type) the documents for an hour be the tome you come back
a)Will type b) will be typing c) will have been typing