The scientists recommend that studies ________ to find out what side effects the medicine might cause.
A．be doneB．should do
C．will be doneD．a(chǎn)re done
A
A　[recommend后接賓語從句時，謂語動詞用虛擬語氣，should可以省略。此題中因為studies是動作的承受者，所以用被動形式。]
練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源：不詳 題型：單選題

“All _____ present and all _____ going on well.” our monitor said.
A．is; isB．a(chǎn)re; areC．a(chǎn)re; isD．is; are

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題


.John is the only one of the students in the class that never______ a mistake even when it is pointed to him.
A．a(chǎn)dmit makingB．a(chǎn)dmits making
C．a(chǎn)dmit to makeD．a(chǎn)dmits to make

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

—I left my handbag on the train, but luckily someone gave it to a railway official.
—How unbelievable to get it back! I mean, someone ________ it.(2011·江蘇)
A．will have stolenB．might have stolen
C．should have stolenD．must have stolen

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

  The professor requested that all the students ________ the reports at once.
A．would hand inB．handed in
C．hand inD．handing in

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

（2014屆江西省重點中學(xué)盟校高三第二次聯(lián)考英語試卷）33. －You didn’t invite Mary to the ball?
－_____           ?
A．Must I invite 　　　B．Should I have invited?　
C．must I have invited 　　D．Should I invite

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

—What a pity! Their experiment is a failure.
—They ________ better under more favorable conditions.
A．should have doneB．could have doneC．must have doneD．may have done

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

I took mathematics and physics because I think that ________ very important for me to make further research in this field.
A．what isB．they areC．thisD．which are

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題


Not Tom, but I ___to blame for the failure.
A．a(chǎn)mB．a(chǎn)reC．isD．be

查看答案和解析>>

同步練習(xí)冊答案