—Youmayfindthekeytothemathspro

— You may find the key to the maths problem on page 107.
— Ah, it’s so simple. I wonder why I_________of that.

A．hadn’t thought

B．haven’t thought

C．didn’t think

D．wasn’t thinking

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相关试题

If the government takes measures to enrich senior citizens’ social and spiritual life, it ____ help develop a truly harmonious society.

A．Can

B．must

C．shall

D．should

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——where did President Xi Jinping have steamed dumplings?
_____It was at the Qing Feng Steamed Dumpling Shop _____ he lined up with other customers.

A．That

B．in which

C．where

D．when

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The research also raises the question ________ children from low-income, less educated families need earlier aid.

A．what

B．that

C．when

D．whether

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Most volunteers are from universities, _________ it is not uncommon to see middle and primary school students too.

A．though

B．however

C．since

D．even if

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Since her only child passed away a few years ago, family has been a ________ topic for her.

A．forbid

B．forbade

C．forbidding

D．forbidden

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