Did you know he's been teaching German___ fifteen years?

a) before

b) since

c) for

d) to

e) all

Поставьте глаголы, стоящие в скобках, в Present Perfect, выбрав for или since. 1. I (to live) here (for/since) 1999. 2. He (to work) there (for/since) May. 3. They (to be) friends (for/since) they started college. 4.

Прочитайте предложения в видо-временнойформе Present Perfect Continuous, задайте cпециальный вопрос, начиная со слов данных в скобках: Образец: It has been raining since morning. (Since when ... ?) Since when has it been raining? 1.

7. I have (lost/been loosing) my note-book. Have you (seen/been seeing) it anywhere? 8. Someone has (eaten/been eating) my sweets. They are nearly all gone. 9. I have (waited/been waiting) for you for ages! Where have you been? 10.

Choose the right tense form. Nina has been learning/has learned English for 2 years. The birds have already flown/have been flying to the South. They have known / have been knowing him for many years.

53.1 Finish the sentences with him/her/them. 1 I don't know those girls. Do you know? 2 I don't know that man. Do you know? 3 I don't know those people. Do you know? 4 I don't know Fred's wife. Do you know? 5 I don't know his friends.