问题
选择题
—_____ does your mother often run with her dog?
—About half an hour. [ ]
A. How many
B. How long
C. How much
D. How old
答案
答案：B
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—_____ does your mother often run with her dog?
—About half an hour. [ ]
A. How many
B. How long
C. How much
D. How old
答案：B