-----This returned Chinese scholar has become one of the top experts in this field.
-----Yes, I know him very well. He _____ in Africa with wild animals for eight years.
A.is working | B.had worked | C.worked | D.has been working |
Certainly I posted your letter—I remember ______ it.
A.posting | B.to post | C.to be posting | D.have posted |
Scarlett Johnasson developed ______ interest in acting at three and has made herself perhaps ______ finest actress of her generation.
A.an; a | B./; the | C.an; the | D./; a |
After being discovered by Dutch explorers in 1606,the eastern half of Australiaby the British in 1770.
A.was claimed | B.claimed | C.was claiming | D.has been claimed |
Women prefer to buy food which has already been preparedit reaches the market.
A.after | B.for | C.before | D.until |
Scientific surveys conducted during the climbs that Mount Huandoy in Peru
6395 meters high.
A.shown;is | B.showed;was | C.shows;was | D.showed;is |