问题:
试题 题型:未知 难度等级:
(2013·成都一模)________ all the homework assigned by the school,
(2013·成都一模)________ all the homework assigned by the school, the students have to work at it till midnight.
A.Completing
B.To complete
C.Having completed
D.To have completed
试题 题型:未知 难度等级:
(2013·成都一模)________ all the homework assigned by the school,
(2013·成都一模)________ all the homework assigned by the school, the students have to work at it till midnight.
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参考答案: