问题
选择题
17．－I didn't pass the English exam.
－Work hard, _______you'll succeed.
A．and
B．but
C．or
D．So
答案
答案：A
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17．－I didn't pass the English exam.
－Work hard, _______you'll succeed.
A．and
B．but
C．or
D．So
答案：A
