题目内容
If _____, please buy me a backpack while you are at the supermarket.
| A.you are convenient | B.it is convenient to you |
| C.it is convenient with you | D.I am convenient to you |
B
略
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题目内容
| A.you are convenient | B.it is convenient to you |
| C.it is convenient with you | D.I am convenient to you |