题目内容
Scientists believe native Americans arrived by crossing the land bridge that connected Siberia(西伯利亚)and more than 10,000 years ago.
A. this is Alaska B. Alaska is now C. is now Alaska D. what is now Alaska
【答案】
D
【解析】这题考查what引导的宾语从句:connect后面应该是宾语从句,从句中缺少的是主语,所以用what引导。选D.
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