Robert failed to complete his education he found it hard to focus on his studies.A. althou

发布时间：2020-08-16 22:52:00

Robert failed to plete his education     he found it hard to focus on his studies.
A. although
B. if
C. because
D. while

网友回答

A. although
B. if
(答案→)C. because
D. while
解析：考查连词。主句与从句之间是因果关系，故用because.
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