—What have you decided to buy for your mother _______ Mother"s Day?—Some flowers

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—What have you decided to buy for your mother _______ Mother"s Day?
—Some flowers. [ ]
A. at
B. on
C. to
D. in

答案

举一反三

My uncle arrived at the airport _______ the morning of May 3rd. [ ]
A. at
B. in
C. on
D. to

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Mr Black is a hardworking engineer. He often stays up late _____ night. [ ]
A. at
B. on
C. about
D. to

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I usually get up _______ eight o"clock on weekends.[ ]
A. at
B. on
C. in
D. to

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I usually do some cleaning ____ Sunday morning.[ ]
A. in
B. at
C. on
D. to

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The Shanghai Expo opened ______ May l, 2010.[ ]
A. on
B. in
C. to
D. at

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