请说明选择的理由,

题目

请说明选择的理由,
1.I had a hard time ______ the key.
A.find B.finds C.finding D.found
2.—Tom plays the violin very well,doesn’t he?—______.
A.He plays it B.He thinks so C.He sure does D.He agrees
3.—Which park are you going to?—______.
A.Good idea B.I’m going to Nanhu Park C.I won’t,either D.It’s too crowded

答案

1. C 考查句型 have a hard time +doing sth
2.C 考查对反义疑问的回答,根据doesn’t he,肯定应用does ,否定应该用doesn’t
3 B