17. You never imagine what great trouble I have ______ this paper in my house. A. found B. for finding C. to find D. finding 为何D

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17. You never imagine what great trouble I have ______ this paper in my house. A. found B. for finding C. to find D. finding 为何D
17. You never imagine what great trouble I have ______ this paper in my house.
A. found
B. for finding
C. to find
D. finding
为何D

17. You never imagine what great trouble I have ______ this paper in my house. A. found B. for finding C. to find D. finding 为何D
have trouble (in)doing sth

have trouble in doing 是词组 做某事很困难