改错 I would appreciate very much if you would help me.

改错 I would appreciate very much if you would help me.

题目
改错 I would appreciate very much if you would help me.
1.改错
2.如果改为I would appreciate it very much if you would help me.
从句中应该用would还是helped
答案
改为 I would appreciate very much if you helped me.
虚拟语气,2.还是helped
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