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题目内容
（河南科技大学大学英语3(专升本)）
______, he failed in the examination.
选项:
A:Although he didn.t work so hard as usual
B:As he worked harder than usual
C:Hard as he worked
D:Having worked harder than usual
选项:
A:Although he didn.t work so hard as usual
B:As he worked harder than usual
C:Hard as he worked
D:Having worked harder than usual
参考答案
