Qian Xuesen is known as China"s "father of space technology" and "king and rocke

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Qian Xuesen is known as China"s "father of space technology" and "king and rockets".
He died _____ October 21 at the age of 98.   [     ]
A. in
B. on
C. at
D. of

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举一反三

-Do you like your pet dog?
-Sure. I think it"s good _____ our old people.[ ]
A. to
B. for
C. with
D. like

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-What do you usually do         Sunday?
-I usually watch games          TV.[     ]
A. on; in
B. on; on
C. in; on
D. in; in

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________ a good teacher, he prepares for class carefully.[     ]
A. For
B. As
C. Fs for
D. Job

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—please pass the key _______ the lock.
—oh! Is it a set _______ keys?[     ]
A. Of; of
B. to; of
C. for; to
D. to, for

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"Please wait _____ the bus stop until I come back."The mother told the children.[ ]
A. for
B. in
C. at

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