问题
选择题
He stayed up late last night,_______for the exam that would take place next week.
A．prep
ared
B．preparing
C．to prepare
D．and preparing
答案
答案：B
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He stayed up late last night,_______for the exam that would take place next week.
A．prepared
B．preparing
C．to prepare
D．and preparing
答案：B