I’m sorry that I can’t help _____ trees because I am busy with the homework.A．to_刷题宝

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I’m sorry that I can’t help _____ trees because I am busy with the homework.

A．to plant

B．planting

C．planted

D．plants

上一题下一题 0.85难度单项选择更新时间:2010-07-30 10:44:55

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