单选题
As a senior student, you are supposed to know better than just _____ until the examination time.无
A、
fooled around
B、
to fool around
C、
having fooled around
D、
to have fooled around
【正确答案】
B
【答案解析】
句意：作为高年级生， 你应该不会蠢到临近考试还在闲荡吧。 know better than to还不至于笨到做……， 因此， 正确答案选择B。
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