问题
I don’t know ______to do with the maths problem. It’s too hard.
A:which
B:how
C:what
D:where;
B:how
C:what
D:where;
正确答案是：
同类题型
May I use your dictionary, Tim— Sorry, I it to my classmate last week.
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________ do you improve your English —I improve it ________ practicing it more often.