选B 这个句子意思是他似乎等了很久.所以句中的appear应加ed
举例：
He appeared to be talking to himself.
他似乎在自言自语.
He appear______________a long time.A.to wait B.to be waiting
He appear______________a long time.A.to wait B.to be waiting
英语人气：939 ℃时间：2020-05-03 07:27:56
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