GIÚP MIK 7 CÂU TRẮC NGHIỆM VS , THANKS C1: I and my pen friend ______ Ho Chi Minh's Mausoleum last Sunday. A. visit B. visited C. visits D. visiting C2: She ______ the ocean before she moved to Vancouver. A. had never seen B. have never seen C. never seen D. had never saw C3: By the time my wife came home , I ____ the laundry. A. do B. had done C. did D. have done C4: We keep our food in the fridge _____ it doesn't go bad. A. since B. so that C. although D. after C5: If I _____ free time , I will go swimming. A. have B. has C. is having D. will have C6: Is there ______ apple juice in the fridge , Laura? A. a B. some C. an D. any C7: The teacher __________ out when I arrivedin the classroom. A. goes B. have gone C. has gone D. had gone C7: We _______ Dorothy for many years. A. don't see B. hadn't seen C. didn't see D. haven't seen