. A variety of courses ________ offered to enrich the students’ background knowledge of the English-speaking countries.
A.were | B.is | C.have | D.has E) / |
. Though having a big market share, most electronic devices of this kind/type/sort ________ found poor in quality.
A.is | B.being | C.are | D.having been |
. Statistics ________ that most of the published and quoted scientific articles are related to medical science.
A.has shown | B.is shown | C.show | D.shows |
35. Sales of CDs have greatly increased since the early 1990s, when people_____ to enjoy the advantages of this new technology.
A.begin | B.began | C.have begun | D.had begun |
24. I don’t know if she __________, but if she __________ I will let you know.
A.comes, comes | B.will come, will come |
C.comes, will come | D.will come, comes |
Professor Li, who I _________ abroad, still teaches in Peking University.
A.think went | B.think to have gone | C.thought went | D.thought had gone |
254. --- We are going to have a volleyball match on the playground tomorrow afternoon.
--- Really? I ________ watch it.
A.will | B.am going to | C.can | D.am able to |
253. Great changes ________ for the latest twenty years in China.
A.have taken place | B.have been taken place |
C.have happened | D.have taken the place of |
229. Look! The shop isn’t open yet. We _____.
A.needn’t hurry | B.don’t need to hurry |
C.must have hurried | D.needn’t have hurried |