问题
The young boy found ________ hard to finish the work alone.
A:that
B:this
C:it
D:which
B:this
C:it
D:which
正确答案是：
同类题型
Which is the _______ way to Qingdao, by plane, bus or train?
The head teacher with his students ____ the park if it __________tomorrow.
A: May I go out to play football, Dad?B: No, you ________. You must finish your homework first.
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