问题
选择题
It ________ Jimmyand his classmates about half an hour ________ the classroom.[ ]
A. spends….to clean
B. takes….to clean
C. costs….to clean
D. spends….cleaning
答案
答案：D
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It ________ Jimmyand his classmates about half an hour ________ the classroom.[ ]
A. spends….to clean
B. takes….to clean
C. costs….to clean
D. spends….cleaning
答案：D