13 Put the verbs into the present simple or the present continuous. 1 Listen! The birds ... are singing... (sing) in the garden! 2 I often ... (buy) fruit from the greengrocer's. 3 My mother ... (drink) tea now. 4 Look at Tom and Jim! They ... (walk) up the hill. 5 That man ... (laugh) at the moment. 6 The cat ... (play) with a ball now. 7 We always ... (wear) warm clothes in winter. 8 He often ... (eat) a sandwich at lunchtime. 9 Be quiet! The girls ... (sleep). 10 How often ... (you/go) to the cinema? 11 They ... (never/eat) carrots. 12 They ... (not/like) potatoes. 13 What ... (you/do) now? Can you see him? He ... (walk) down the street.

Решение:

Заполняем пропуски, выбирая между Present Simple (для регулярных действий, привычек) и Present Continuous (для действий, происходящих в данный момент).

1. Listen! The birds are singing (sing) in the garden! (Действие происходит сейчас, поэтому Present Continuous).
2. I often buy (buy) fruit from the greengrocer's. ('often' указывает на регулярность, поэтому Present Simple).
3. My mother is drinking (drink) tea now. ('now' указывает на действие в данный момент, поэтому Present Continuous).
4. Look at Tom and Jim! They are walking (walk) up the hill. (Призыв 'Look!' указывает на действие, происходящее сейчас, поэтому Present Continuous).
5. That man is laughing (laugh) at the moment. ('at the moment' указывает на действие в данный момент, поэтому Present Continuous).
6. The cat is playing (play) with a ball now. ('now' указывает на действие в данный момент, поэтому Present Continuous).
7. We always wear (wear) warm clothes in winter. ('always' указывает на регулярность, поэтому Present Simple).
8. He often eats (eat) a sandwich at lunchtime. ('often' указывает на регулярность, поэтому Present Simple).
9. Be quiet! The girls are sleeping (sleep). (Призыв 'Be quiet!' указывает на действие, происходящее сейчас, поэтому Present Continuous).
10. How often do you go (you/go) to the cinema? (Вопрос о регулярности действия, поэтому Present Simple).
11. They never eat (never/eat) carrots. ('never' указывает на отсутствие регулярности, поэтому Present Simple).
12. They do not like (not/like) potatoes. (Выражение предпочтений, относится к Present Simple).
13. What are you doing (you/do) now? ('now' указывает на действие в данный момент, поэтому Present Continuous).
14. Can you see him? He is walking (walk) down the street. (Наблюдение за действием в данный момент, поэтому Present Continuous).

Ответ: 1. are singing, 2. buy, 3. is drinking, 4. are walking, 5. is laughing, 6. is playing, 7. wear, 8. eats, 9. are sleeping, 10. do you go, 11. never eat, 12. do not like, 13. are you doing, is walking.