Bài 5:
C1: haven't seen C2: haven't eaten
C3: haven't tried C4: haven't played
C5: have read C6: haven't been
C7: haven't had C8: have known
Bài 6:
C1: cleaned C2: Have you ever recycled things...?
C3: has donated C4: Did Tom participated in Green Summer...?
C5: didn't start C6: haven't finished
C7: watched C8: travelled
C9: have read C10: have lived
Bài 7:
C1: have done C2: has writen, haven't finished
C3: left, haven't met C4: What did you do last weekend? Did you play golf?
C5:How long have you had it? C6: bought,haven't worn
C7: has taught, graduated C8: Have you heard about Agatha Christie( my idol)? She was a writter who died in 1976. She has written more than 70 detective novels. Have you read any of them?
C9: got, was, went C10: earned, has already spent
Bài 8:
C1: since
C2: for
C3: for
Chúc bạn học tốt và an toàn trong mùa dịch Covid-19 >.<