Great as Newton was, many of his ideas_____today and are being modified by the work of scientists of our time.
A．a(chǎn)re to challenge B．have challenged
C．a(chǎn)re challengingD．have been challenged
D
challenge同ideas之間存在被動(dòng)關(guān)系。句子表“當(dāng)年牛頓的許多想法受到了質(zhì)疑”之意。
練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目：高中英語(yǔ) 來源：不詳 題型：單選題

He hasn't come yet．What do you consider _______ to him？
A．happensB．has happened
C．happeningD．to happen

查看答案和解析>>

科目：高中英語(yǔ) 來源：不詳 題型：單選題

— I’m sorry, but I shouldn’t have been so rude to you.
— You ＿＿ your temper but that’s OK.
A．have lostB．had lostC．did loseD．were losing

查看答案和解析>>

科目：高中英語(yǔ) 來源：不詳 題型：單選題

----Any news about Bill Clinton?
----He left power three years ago and has a little now and a little then been ______.
A．heard of sinceB．heard sinceC．heard beforeD．heard of before

查看答案和解析>>

科目：高中英語(yǔ) 來源：不詳 題型：單選題

．I want to buy that kind of cloth because I _____ the cloth _____ well.
A．have been told; washesB．have told; washes
C．was told; washedD．have been told; is washed

查看答案和解析>>

科目：高中英語(yǔ) 來源：不詳 題型：單選題

The days we have been looking forward to ____ soon．
A．comingB．will comeC．cameD．have come

查看答案和解析>>

科目：高中英語(yǔ) 來源：不詳 題型：單選題

—Jim came back home last night. —Really? Where ________ at all?
A．had he beenB．has he been
C．had he goneD．has he gone

查看答案和解析>>

科目：高中英語(yǔ) 來源：不詳 題型：單選題

He ___ speak on TV tonight.
A．was toB．is toC．will beD．has

查看答案和解析>>

科目：高中英語(yǔ) 來源：不詳 題型：單選題

“Aha, you’re a chain smoker!” “Only at home. Nobody _______ that but you.”
A．discoveredB．had discovered
C．discoversD．is discovering

查看答案和解析>>

同步練習(xí)冊(cè)答案