题目内容
After ______ his exercises,he left the classroom to play with his friends.
[ ]
| A.hand in | B.handing in |
| C.giving in | D.handed in |
答案:B
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题目内容
After ______ his exercises,he left the classroom to play with his friends.
[ ]
| A.hand in | B.handing in |
| C.giving in | D.handed in |