— Here is Paul! We _____ anxiously for him since last night.
— Maybe something happened to him.

A. waited
B. were waiting
C. had waited
D. have been waiting
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科目：高中英語(yǔ) 來(lái)源：河南省模擬題 題型：單選題

— Here is Paul! We _____ anxiously for him since last night.
— Maybe something happened to him.
[     ]
A. waited
B. were waiting
C. had waited
D. have been waiting

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