Câu 1: The match _____ because of the bad weather a. has canceled b. has cancel c. has been cancel d. has been canceled Câu 2: How long_______ medicine? a. does your sister study b. have your sister studied c. your sister has studied d. has your sister studied Câu 3: he _____ taxi since his son was born a. drives b. has driven c. had driven d. drove Câu 4: The students _____ by Mrs. Monty.However, this week they ____ by Mr. Tan a. are usually taught/are being taught b. usually teach/ are teaching c.have usually been taught/ have been teaching d. were usually teaching / are teaching Câu 5: Mr. Wilson is _______as Wilie to his friend a. Knowed b. knew c. known d. is known Câu 6: References ______ in the examination room a. not are used b. is not used c. didn't used d. are not used