Cac ban oi cuu to với

8: A.10 9: A. complicated B.complicate C. complicating D. complication 10: A. same B. such C. like D. So 11: A. in B. for C. to D. on 12: A. early B. opening C. first D. advance 13: A. switched B. returned C. replaced D. changed VI-WRITING + EX: Complete each of the following sentences ...