问题描述：
#[1] -They haven't finished all the work up to now.-They _____.
A.should
B.ought to
C.are supposed to
D.are supposed to have
翻译并且分析包括语法.
A.should
B.ought to
C.are supposed to
D.are supposed to have
翻译并且分析包括语法.
问题解答：
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