—You may find the key to the math problem on page 107.
—Ah, it’s so simple. I wonder why I _____ of that.
A．hadn’t thoughtB．haven’t thoughtC．didn’t thinkD．wasn’t thinking
C

這題考查時態(tài)的用法：句意是：--你可以發(fā)現(xiàn)107頁的數(shù)學(xué)問題的答案。--啊，這么簡單。我想知道為什么沒想到。說明是過去沒想到，說明過去沒想到，現(xiàn)在想到了。選C。
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

—What do you think of the Eiffel Tower?
—Splendid. When I was in France, I      it.
A．have visitedB．had visitedC．could visitD．visited

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

--- Hi, Torry, can I use your computer for a while this afternoon?
--- Sorry, _____________.
A．it is repairedB．it has been repaired
C．it’s being repairedD．it had been reapired

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

Could I do some explanations? I    to call on you last night, but somebody came to see me just when I was to about leave.
A．would intendB．intendedC．had intendedD．was intending

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

It took me a long time before I was able to fully appreciate what they ______ for me.
A．had doneB．didC．would doD．were doing

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

——I’m sorry , but there’s no smoking on this flight ．
——Oh, I _______that ．Sorry , I won’t again ．
A．don’t know B．didn’t know
C．won’t know D．haven’t known

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

--I failed again. I wish I ____harder.
----But you _____.
A．had worked; hadn’tB．worked; don’tC．had worked; didn’tD．worked; didn’t

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

If they ______ what I was saying, they’d know what I was talking about.
A．took the trouble to listen toB．had trouble listening to
C．take the trouble to listen toD．have trouble listening to

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

Several days later, most of the buildings ________ were repaired.
A．been damagedB．had been damagedC．which been damagedD．which had been damaged

查看答案和解析>>

同步練習(xí)冊答案