Mark the letter A, B, C or D to indicate the underlined part that needs correction in each of the following questions. Câu 21. It was reported that a policeman was badly injured in the explosion. A. was reported B. a C. badly D. injured Câu 22. The Principal demanded that the heaters repair immediately. Winter is coming! A. The B. demanded C. repair D. is coming Câu 23. The accident seemed to have destroyed completely his confidence. A. The B. seemed C. to have D. destroyed completely

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