题目内容
【题目】Thanks for helping me________out that problem.
A. work
B. working
C. works
D. to working
【答案】A
【解析】help sb do sth帮助某人做某事。
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题目内容
【题目】Thanks for helping me________out that problem.
A. work
B. working
C. works
D. to working
【答案】A
【解析】help sb do sth帮助某人做某事。