问题
I don’t know ______ with this problem. It’s too hard. — You can ask Mr Wang for help.
A:which to deal
B:when to deal
C:what to deal
D:how to deal
B:when to deal
C:what to deal
D:how to deal
正确答案是：
同类题型
I’m waiting for my friend. , I’ll go shopping alone. [ ]
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