问题
选择题
Exercise One should be done in class as an example, while the rest ________ as homework. [ ]
A. is to be finished
B. are to finis
C. are to be finished
D. is to finish
答案
答案：C
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Exercise One should be done in class as an example, while the rest ________ as homework. [ ]
A. is to be finished
B. are to finis
C. are to be finished
D. is to finish
答案：C