【題目】We can’t figure out ______ quite a number of insects and birds are dying out．

A．that B．a(chǎn)s C．why D．when

【答案】C

【解析】我們無法弄明白為什么相當多的昆蟲和鳥兒正在沒絕。根據(jù)句意，故選C

練習冊系列答案
相關(guān)習題

科目：高中英語 來源： 題型：

【題目】When the young man was shown the evidence, he _______ and told everything he had done to the police.

A. broke up B. broke away

C. broke off D. broke down

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】The company is making a long-term__________to breaking into the American market.

A.complaintB.commentC.commitmentD.contribution

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】They will never forget the days _______ they spent together studying abroad.

A.in whichB.thatC.on whichD.during which

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】My little son _______ out alone at night.

A.dare not to goB.dares not to goC.doesn’t dare to goD.dares not go

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】With strong __________ to go to Tsinghua University, he is working very hard.

A．dream B．determination

C．a(chǎn)ttitude D．quality

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】______ environmental damage is done，it takes many years for the ecosystem to recover．

A．Even if B．If only

C．As if D．Once

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】The competition attracted over 500 players ____________8 different countries.

A.to representB.representedC.representingD.who represents

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】Those successful deaf dancers think that dancing is an activity _________ sight matters more than hearing.

A. when B. whose C. where D. which

查看答案和解析>>

同步練習冊答案