Выразите сильное сомнение по поводу этих утверждений. Model:
1) She knew nothing about it. - Can she have known nothing about it? - She can't have known anything about it
2) She is still waiting. - Can she still be waiting? - She can't be still waiting.

Алгоритм.
Шаг 1. В исходном предложении находим глагол и определяем, как и когда совершается действие. Если это present simple, инфинитив будет простой (V1). Если время (как в модели 1), инфинитив будет перфектный (have V3). Если длительное (как в модели 2), инфинитив будет длительный (be Ving). Если past continuous, то инфинитив перфектно-длительный (have been Ving). Инфинитив без to!

Шаг 2. Вставляем инфинитив в структуру. «Неужели…?» - вопросительное предложение. «Не может быть» - отрицательное.

1. He saw a lion there. 2. Jonas attended a public meeting in the town. 3. On Friday morning Bill came to the office again. 4. She went down the garden path. 5. He feels really bad about it. 6. The children are playing by the pond. 7. He looked through all your papers. Now he knows everything.

And then Edward suddenly (stiffened) and (was) cold all over.  This (was) not his car. It (be) very like it, yes.  But by a thousand small signs Edward (realized) that it (was) not his car.  Edward (remembered) that there (had been) another car standing some little distance away. He (did not notice) it particularly at the time.  He (returned) from his walk by a different path from that by which he (had gone) down into the hollow.  This second path (had brought) him out on the road immediately behind, as he (thought), his own car. It must really have been the other one. In about ten minutes he (was) once more at the spot where he (had been). But there was now no car at all by the roadside.

My friend came from London last year, didn't he?( a tail- question)

Did my friend come from London last year?( a general question).

Did my friend come from London or from Moscow last year?( an alternative question)

When did my friend come from London?( a special question)

Task 3.

she WAS twenty two ,...so she IS twenty three now.

Today the weather is nice, but yesterday it was cold.

I am hungry.

Task 4.

We were happy...Our room was clean.

George wasn't at work.. He was ill.

Task 5.

I had not time to do the shopping yesterday.

Has Lisa got a car?