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