16. This is the first time the students______ to Hyde Park.
A. have gone B. have been gone C. have been going D. are being gone
答案:A
17. She ______ her mother’s work since she was admitted into hospital.
A. is doing B. has been doing C. has done D. has been done
答案:B
18. Elections _______ every four years and Congress meets once a year.
A. are taken place B. are to be taken place C. took place D. take place
答案:D
19. Oil, exported from Iran to Europe, _____ by tankers.
A. used to be transported B. used to being transported
C. was used to be transported D. was used to being transported
答案:A
20. If it ______, the match will be postponed.
A. has been rained B. does rain C. rains D. is rained
答案:C
免责声明:本站所提供试题均来源于网友提供或网络搜集,由本站编辑整理,仅供个人研究、交流学习使用,不涉及商业盈利目的。如涉及版权问题,请联系本站管理员予以更改或删除。