Page 221 - Bai-tap-tieng-anh-10

2. c (by a German) 5. b (have caused) 8. a (Why
don’t)

3. c (spent) 6. b (to spend) 9. d (was
working)

IV. 1. d 2. d 3. c 4. b 5. d 6. a 7. c 8. b

V. A. 1. b 2. c 3. a 4. b 5. c 6. d 7. b 8. c 9. a 10. c

B. 1. d 2. d 3. d 4. b 5. c

VI. 1. c 2. d 3. b 4. c 5. a 6. b

ĐÁP ÁN

UNIT 11.

I. 1. a 2. c 3. a 4. c 5. d 6. b

II. 1. Contamination 3. located 5. orphaned 7.

abandoned 9. released

2. endangered 4. to explore 6. defeated 8. to establish
10. Contains

III. 1. had gone - would/ could have become 6. had

had - would have taken

2. had missed - would have been 7. had bad - would
have sent