题目内容
-May I speak to Mr.Smith?
-I am afraid not. He is at a meeting now.It's not .
A. reliable B. convenient C. beneficial D. available
B
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―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. |