You have failed two tests.You'd better start working harder, you won't pass the course.A.

发布时间：2020-08-17 09:21:19

You have failed two tests.You'd better start working harder,     you won't pass the course.
A. and
B. so
C. but
D. or

网友回答

A. and
B. so
C. but
(答案→)D. or
解析：考查“祈使句＋and/or＋陈述句”。因为祈使句与后面的陈述句所表达的内容是对立的关系，故用or(否则)。
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