题目内容
-________ do you go to the library?
-I usually go to the library twice a week.
[ ]
A.How long
B.How often
C.How far
D.How many
答案:B

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题目内容
-________ do you go to the library?
-I usually go to the library twice a week.
A.How long
B.How often
C.How far
D.How many