问题描述：
1) The little girl can't decide______really though there are so many kinds of MP5 in the mall.
A.what to choose B.to choose which C.which to choose D.to choose what
2) A car accident happened ______a cold winter morning.
A.in B.on C.at D.of
A.what to choose B.to choose which C.which to choose D.to choose what
2) A car accident happened ______a cold winter morning.
A.in B.on C.at D.of
问题解答：
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