问题
选择题
—How long do you spend __________ your dog?
—Less than __________ hour. [ ]
A. walking, an
B. walk, an
C. walking, a
D. walk, a
答案
答案：A
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—How long do you spend __________ your dog?
—Less than __________ hour. [ ]
A. walking, an
B. walk, an
C. walking, a
D. walk, a
答案：A