题目内容
用适当的介词填空
He will have ________ speak ________ front of the whole school．
He gets up ________ 6 every morning．
He has been home only once ________ he went to college.
He decided to give ________ smoking.
He sang a song ________ the party yesterday.
He has charged ________ breaking ________ several computer systems ________ the last years．
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