Not until the early years of the 19th century______ what heat is. A．man did know

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Not until the early years of the 19th century______ what heat is.

A．man did know

B．man knew

C．didn’t man know

D．did man know

答案

解析

略

举一反三

Not until I began to work ______how much time I had wasted.

A．didn’t I realize

B．did I realize

C．I didn’t realize

D．I realized

题型：不详难度：| 查看答案

______ can you expect to get a pay rise.

A．With hard work	B．Although work hard
C．Only with hard work	D．Now that he works hard

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Only in this way _____ progress in your English.

A．you make	B．can you make
C．you be able to make	D．will you able to make

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So ____ that no fish can live in it.

A．the lake is shallow	B．shallow the lake is
C．shallow is the lake	D．is the lake shallow

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Had I known her name，___________ .

A．or does she know mine	B．and where does she live
C．she would come here	D．I would have invited her

题型：不详难度：| 查看答案