现在完成时态 练习题(10)

1. – Where is Mr. Liu? ----- He _______the library. A. has been to B. has gone to C. has been in 2. I like Hainan. I ________there for three times. A. went B. have been C . have gone3.We came to Nanjing three years ago, so we ________ here for three years. A.have been to B. have been in C. have been D. have gone 4.- How long ______you_______ your dictionary? About two months. A.did; buy B. have; get C. have; had D. have; bought