题目内容

he is not invited, he must go to the meeting to see what is going on there.

A. Even if
B. Only if
C. I wish
D. In case
E. As long as

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What is the present value of the houseyou have made a new decoration

A. while
B. since
C. when
D. until
E. after

history man has changed his physical environment in order to improve his way of life.

Along
B. In
C. Since
D. Throughout
E. While

this time the design of airships was constantly being improved and1937 they carried thousands of passengers on regulartransatlantic services for millions of miles.

A. During / then
B. Until / then
C. During / up to
D. While / until
E. Whenever / until

the surrounding rocks contain copper, the stalactites are green.

A. Whereas
B. Along
C. Whenever
D. Through
E. While

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