II. Chuyển các câu sang thể bị động ở thì QKĐ. 1) He studied English last Saturday and Sunday. English ........ 2) They made jean cloth completely from cotton. Jean cloth ......... 3) Graham Bell invented the telephone. the telephone ...... 4. The policeman took Lam to the police station. Lam........ 5) She grew a lot of flowers in the garden. A lot of flowers...