____ to America, her parents have not heard from her.A.Because she wentB.After s

____ to America, her parents have not heard from her.A.Because she wentB.After s

题型:不详难度:来源:
____ to America, her parents have not heard from her.
A.Because she wentB.After she wentC.When she wentD.Since she went

答案
D  
解析
题意:自从她去了美国,她父母从来没有收到她的来信。since意为“自从”,引导时间状语从句。在由since 引导的主从复合句中,从句用一般过去时,主句用想在完成时。
举一反三
Tom enjoyed himself so much _____ he visited his best friend in Beijing last year.
A. that           B which           C. when       D.where
题型:不详难度:| 查看答案
—Oh, I failed again
—Don’t lose heart. One more time, ________ you will succeed.
A.so thatB.thereforeC.howeverD.and

题型:不详难度:| 查看答案
________ a difficult situation, so you should send a message to him and give some advice to him .
A.As he is inB.He is inC.Being inD.He being in

题型:不详难度:| 查看答案
He said he would work it out himself, ________ ask nobody for help.
A.and not toB.but notC.and prefer notD.rather than

题型:不详难度:| 查看答案
________ enough time, but he couldn’t do it better.
A.He was givenB.GivenC.To be givenD.Though he was given

题型:不详难度:| 查看答案
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