.He spent more than twice as much time on the problem _____ I spent on it .A． th

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.
He spent more than twice as much time on the problem _____ I spent on it .

A． than

B．as

C．less

D．so

答案

解析

略

举一反三

.
Hundreds of houses fell down in the earthquake It seemed________that everything
happened．

A．all of a sudden

B．in a hurry

C．to our surprise

D．in a while

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.
－Hello，Anne，it’s Jack here Can I speak to Robert，please?
－Hi，Jack．Robert_______in the garage,Can I get him to call you back?
－Sure．Thanks．
A．has worked B．is working C．worked D will work

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.
It was ______ the 19th century_____ heat was considered to be a form of energy.

A．not until; that	B．until; that
C．not until; when	D．until; when

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.
-----I’m terribly sorry to have put you through so much trouble.
-----________. I know you didn’t mean to.

A．Forget it	B．No trouble
C．All right	D．You’re welcome

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.
My hometown,_______ I spent my happy childhood, has changed a lot.

A．when

B．where

C．which

D．since

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