问题
选择题
Let's stop ______ and ______ a rest. [ ]
A. to walk; have
B. walking; has
C. walking; have
D. walking; having
答案
答案：C
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Let's stop ______ and ______ a rest. [ ]
A. to walk; have
B. walking; has
C. walking; have
D. walking; having
答案：C
