21 Complete the sentences using the verbs in brackets in the correct form: the infinitive without to or the -ing form, as in the example. Sometimes both variants are possible. We heard the birds singing. (sing) 1. He saw them … off the tram near the post office. (get) 2. I noticed him my messages. (read) 3. She felt someone… her shoulder. (touch) 4. I saw Helen … the house. (enter) 5. My father watched the workers … … the roof. (repair) 6. She noticed him … the flower. (pick) 7. Have you ever seen him ? (exercise) 8. I heard George … to help us. (promise) 9. We looked at the children … the ducks. (feed) 10. Can you hear the thunder … ? (rumble) 11. We didn't notice my brother … … into the room. (come) the guitar? (play) 12. Have you ever heard her…

Конечно! Давайте заполним предложения, используя правильные формы глаголов. Вот ответы на ваши предложения:

1. He saw them get off the tram near the post office. (get)
2. I noticed him reading my messages. (read)
3. She felt someone touching her shoulder. (touch)
4. I saw Helen enter the house. (enter)
5. My father watched the workers repair the roof. (repair)
6. She noticed him picking the flower. (pick)
7. Have you ever seen him exercise? (exercise)
8. I heard George promise to help us. (promise)
9. We looked at the children feeding the ducks. (feed)
10. Can you hear the thunder rumbling? (rumble)
11. We didn't notice my brother coming into the room. (come)
12. Have you ever heard her play the guitar? (play)

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