―Hello！May I speak to Jack, please?  
―Yes, speaking. 
－Oh, I _______ your voice at first.
A．don’t recognize.B．didn’t recognize.
C．hadn’t recognized.D．haven’t recognized.
B
本題考查動(dòng)詞時(shí)態(tài)。句意為：“我”最初沒有辨認(rèn)出“你”的聲音。說話的時(shí)候已經(jīng)聽出來是Jack的聲音，“沒聽出來”是說話前的動(dòng)作。所以應(yīng)該用過去時(shí)態(tài)。?
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