问题
选择题
We _________ finish our homework on time.
A. is supposed to B. be supposed to C. are supposed to
答案
答案：C
题目分析：句意：我们应该按时完成作业。be supposed todo sth应该做某事，一般现在时态中，主语为复数，用are,故选C。
考点: 考查动词的用法。
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