题目内容
【题目】There are some pens on the ground. Please pick _____ for me. ( )
A.it upB.them upC.up themD.up it
【答案】B
【解析】
略
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题目内容
【题目】There are some pens on the ground. Please pick _____ for me. ( )
A.it upB.them upC.up themD.up it
【答案】B
【解析】
略