19 Употребите глаголы, данные в скобках, в Future in-the-Past и переведите предложения на русский язык:

Образец: If you studied, you (to pass) your exam.

If you studied, you would pass your exam.

- Если бы вы занимались, вы бы сдали экзамен.

1) If he attended class regularly, he (to make) good progress.

2) If he went to bed earlier, he not (to feel) so tired.

3) If she prepared her homework every day, she (to get) better marks.

4) If I saw her, I (to give) her your message.

5) If it were not cold, there (to be) no snow on the ground.

6) If I didn't need this book myself, I (to let) you have it.

7) If I carne to Moscow, I (to visit) my friends.

20 Употребите глаголы, данные в скобках, в Past Perfect и переведите пред­ложения на русский язык:

Образец: If I (to have) time yesterday, I should have gone to the party.

If I had had time yesterday, I should have gone to the party. - Если бы у меня было время вчера, я бы пошел на вечер.

1) If I (to know) about this yesterday, I should have worried all day long.

2) If the weather (to be) nice yesterday, we should have gone to the park.

3) If I (to know) you were living in Moscow, I should have looked you up.

4) If I (to wear) a raincoat, I shouldn't have got wet.

5) If I (to receive) your message, I should have come at once.

7) If he (to have) your address, he would have written to you.

21 Употребите Past Indefinite (Simple) после союза if, сделав соответствующие изменения в главном предложении. Переведите предложения на русский язык:

Образец: If John comes, he will help us.

If John came, he would help us. - Если бы Джон пришел, он бы помог нам.

1) If she studies hard, she will pass her examinations.

2) If I see her, I shall give her your message.

3) If they work hard, they will learn English.

4) If Mary is present, the party will be a success.

5) If we hurry, we can get there by two o'clock.

6) If I don't have to study, I shall go to the movie with you.

7) If you turn out the lights, we shall be in the dark.

22 Употребите Past Perfect после союза if, сделав соответствующие изменения в главном предложении:

Образец: If John comes, he will help us.

If John had come then, he would have helped us.

1) If they invite me, I shall go with them.

2) If it rains, we shall not go.

3) If I feel better, I shall go with you.

4) If I am not busy, I shall be glad to accompany you.

5) If she saves her money, she will be able to go on a vacation.

6) If I have no time this week, I shall not be able to join your ex­cursion.

7) If she sits in the sun too long, she will get sick.

23 Переведите следующие предложения на русский язык. Подчеркните в придаточ­ных предложениях глаголы в сослагательном наклонении:

1) It would have saved you a lot of time if you had prepared for your experiment more carefully.

2) If it were possible to live on the Moon, people would be able to jump about six times as high as they can on the Earth.

3) If he were here now, he would tell us many interesting stories about his trip.

4) If she could, she would certainly help you.

5) If they had had enough time they would have repeated their experiment.

6) Had we known all those facts before, we should have written to you about them long ago.

7) Should she come, let her wait a little.

8) If he were here, he would demonstrate the diagrams to us.