PAG. 138
A.
1. did he thibk he would be an eyewitness to such a serious crime.
2. did he believe he would pass the exam.
3. does he bring his mobile phone to school.
4. had he entered his house than he heard an explosion.
5. did the robber escape on a motorcycle but he also took a big amount of money.

B.
1. Hardly had she left the house when it started to rain. 
2. Rarely do we get the chance to see our friends once a week.
3. Under no circumstances will they let off his time.
4. Never should you break the school rules if you want to be punished.
5. Only when he apologises, will I speak to him.
6. So kind was she to me that I didn’t believe my ears.
7. Such a difficult exercise was it that I couldn’t do it.

PAG. 139
C.
1. This is the student whose mobile phone was stolen.
2. That’s the house in which I live. That’s the house I live in.
3. They gave me some books none of which were mine.
4. That is the man to whom she was talking.
5. Jane Sanders, who is a film star, is very popular.

D.
1. He never has a lot of money on him for fear of being robbed.
2. He invented an alibi so that he proved he was innocent.
3. They were late due to heavy traffic.
4. This device is for opening cans easily.
5. Not until all the students went out, did the teacher leave the classroom.

E.
1. On no account did I destroy school property.
2. Never before have I covered a wall with graffiti.
3. He’s the students whom I suspect for stealing my money.
4. Not once have I tried to cheat.