$\text{Exercise 3:}$
$\text{1. You play tennis better than I do.}$
$\text{2. It’s two years since I went to the dentist’s.}$
$\text{3. She never went to Paris without buying a new dress.}$
$\text{4. After having spent seven years at secondary school I went to}$
$\text{university.}$
$\text{5. There’s no need to make her change her mind.}$
$\text{6. He denied for having stolen the car.}$
$\text{7. Isn’t there another way to reach the city centre.}$
$\text{8. At no time did he suspect that someone had stolen the money.}$
$\text{9. If I were you, I’d take more exercise.}$
$\text{10. She persuaded me not to leave.}$
$\text{Exercise 4:}$
$\text{1. He greatly regretted not seeing Andrey on her trip to London.}$
$\text{2. The accident is thought to have been caused by human error.}$
$\text{3. He asked Elizabeth if she would be visiting the Taj Mahal}$
$\text{when she went India.}$
$\text{4. The waiter recommended that we should try the chicken}$
$\text{Marengo.}$
$\text{5. I have never tasted such a dilicious cake.}$
$\text{Exercise 5:}$
$\text{1. They’re such easy questions that everyone can answer them.}$
$\text{2. The boy whose parents died in a traffic accident will receive}$
$\text{some money to continue his study}$
$\text{3. Motorbikes are being produced in Vietnam.}$
$\text{4. If I had been there yesterday, I would have known who he was.}$
$\text{5. Unless you try hard, you can’t pass the examination.}$
$\text{6. The more they spent money the harder they had to work.}$
$\text{7. The cover was thought to have been make of iron.}$
$\text{8. He went to London where had lived when he was a boy.}$
$\text{9. Because Jane was sick, Jane was absent from class.}$
$\text{10. The package was so heavy that Peter couldn’t carry it.}$