Inpreparationforthelaunchingof

In _____ preparation for the launching of Shenzhou Ⅶ, scientists need ______ knowledge of weather changes.

A．the; the

B．a; ∕

C．∕; a

D．the; a

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I _____ some knowledge of cooking just by watching my mother doing it.

A．put up

B．looked up

C．picked up

D．set up

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Tom’s mother bought quite a lot of things online but spent only $20 _____.

A．in order

B．in a word

C．in all

D．in conclusion

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Either you or I _____ going to attend the meeting in the afternoon.

A．are

B．am

C．is

D．will

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Students should be encouraged to use _____ Internet as _____ resource.

A．不填, a

B．不填, the

C．the, the

D．the, a

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His sister left home in 1998, and_______ ever since.

A．had not been heard of	B．has not been heard of
C．had not heard of	D．has not heard of

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