Question

Complete the sentences with the correct passive form of the verbs. 1) In my opinion more research into the new pills ought to / to do before people started buying them. 2) Their sleep can / to disturb by any noise. 3) I really doubt that wild animals can / to hold in the zoos safely. 4) It is evident that the results of the exams must / to check before they were revealed.​

Answer 1

Ответ:

1. In my opinion more research into the new pills ought to be done before people started buying them.

2. Their sleep can be disturbed by any noise.

3. I really doubt that wild animals can be held in the zoos safely.

4. It is evident that the results of the exam must he checked before they were revealed.

Answer 2

1. In my opinion, more research ought to be done into the new pills before people started buying them.
2. Their sleep can be disturbed by any noise.
3. I really doubt that wild animals can be held in the zoos safely.
4. It is evident that the results of the exams must be checked before they are revealed.