单选题
I think it is high time we ______ the fact that environmental pollution in this area is getting more serious than before.
A、
woke up to
B、
must wake up to
C、
wake up to
D、
are waking up to
【正确答案】
A
【答案解析】
固定用法it's high time that后面接虚拟语气，所以应用过去式。
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