现在完成时态 练习题(13)

5. Those foreign friends left Guangzhou _____. A.since last week B. a week ago C. for a week D. since a week ago 6. I _____ at this school for two years. A.am studying B. study C. studied D. have studied 7. They _________ in the city since last summer. A. live B. didn't live C. have lived D. live 8. Mrs. Wang has lived in Haikou _________ 1992. A. since B. from C. after D. in 9. Mr. Black _________ China since the summer of 1998. A.has been to B. has been in C. has come to D. came to