Грамматика. Просьба помочь

Change the sentences to use the infinitives with or without to.
1.It’s important to eat enough. – You should……………………………....
2.I’d like to go sailing this summer. – She might ………………….……..…
3.She will probably get married in July. – She expects …………………..…
4.I said I would help her. – I agreed ………………………………
5.It’s necessary to make careful plans. – We must …………………..………
6.Perhaps she’s ill. – She seems ……………………………………
7.I want to change my job. – I wish I could …………………………….…
8.I may come and see you next week. – I hope ……………………………
9.I will certainly pay you on Saturday. – I promise ………………………..
10.I prefer to go by myself. – I would rather ………………………………..

2. Complete the sentences with the words in the list. Use possible forms.
chaselandshakeplaywalktake off
comelook atsingknockget intoring

1.When I was down town yesterday, I saw the police …………… a thief.
2.There was an earthquake in my home town last year and I could feel the ground …………….
3.Polly was working in her garden, so she didn’t hear the phone ……………………………
4.I like to listen to the birds ………………… when I get up early in the morning.
5.The guard observed a suspicious-looking man …………….. into the bank.
6.Did you notice Max …………… another student’s paper during the exam?
7.While I was waiting for my plane, I watched other planes ……..…….. and ………..……
8.When I walked past the park, I saw the children ………………… baseball.
9.Do you see Mary ………………….. up the street?
10.At 5:30 yesterday afternoon, I saw Jim ………………….. his car.

3. . Change the sentences into the passive.
1.We saw the football player score a goal.
2.I heard Jane mention Mr Brown’s name.
3.Pete watched the children play tennis.
4.Nobody observed them take away the documents.
5.I saw my colleague come into the room.