题目内容
"_____ has Mary been playing the piano?" |
A. How soon B. How long C. How far D. How often |
试题答案
B
相关题目
"_____ has Mary been playing the piano?"
"For three and a half hours."
[ ]
A. How soon
B. How long
C. How far
D. How often
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B. How long
C. How far
D. How often