It is pretty well understood __________controls the flow of carbon dioxide in and out the atmosphere today.
A．thatB．whenC．whatD．how
C
主要測(cè)試主語(yǔ)從句。分析句子結(jié)構(gòu)可知：句子屬于形式主語(yǔ)格式；另外主句中缺少主語(yǔ)。雙重作用的引導(dǎo)詞只能是what。例如：It is still doubtful what he said at the meeting yesterday。昨天他在會(huì)上說(shuō)的話仍然值得懷疑。
練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目：高中英語(yǔ) 來(lái)源：不詳 題型：單選題

With his work completed, the businessman stepped back to his seat, feeling pleased_____ he was a man of action.
A．whichB．thatC．whatD．whether

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：不詳 題型：單選題

There’s little doubt _____ we will _____ the game.
A．that , winB．whether , winC．whether , beatD．that , beat

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：不詳 題型：單選題

The place _______ the bridge is supposed to be built should be________the cross-river traffic is the heaviest.
A．which; whereB．a(chǎn)t which; whichC．a(chǎn)t which; whereD．which; in which

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：不詳 題型：單選題

After Yang Li Wei succeeded in circling the earth, _______ our astronauts desire to do is walk in space. 
A．whereB．whatC．that D．How

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：不詳 題型：單選題

_____________ he said at the meeting astonished everybody present.
A．WhatB．ThatC．The factD．The matter

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：不詳 題型：單選題

A computer can only do ____ you have instructed it to do.  
A．howB．a(chǎn)fterC．whatD．when

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：不詳 題型：單選題

---What made her so sad?
---___she had lost her purse with a lot of money in.
A．BecauseB．SinceC．.WhatD．That

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：不詳 題型：單選題

--Do you remember ____ he came?
--Yes, I do.He came by car.
A．whenB．ifC．howD．that

查看答案和解析>>

同步練習(xí)冊(cè)答案