【单选题】
A: Do you know that Tony quarreled with his brother? B: I dont know,[填空].
【单选题】
It is no good ___________ to know what you dont know.
【单选题】
I dont have to introduce the boy to you ___-you know him.
【单选题】
A: Do you know Marks phone number? B: [填空] . A: OK. I might as well look it up in the phone book.
【单选题】
16.I dont have to introduce the boy to you ___-you know him.
【单选题】
Do you know the man _______?
【单选题】
A: I didnt know you play basketball. Are you having fun? B: Im having a great time. [填空] What are you doing?
【单选题】
—He has two brothers and three sisters. Do you know____ of them?—No, I know ____ of them.
【单选题】
Do you know ______at the bus stop?
①
whom they are waiting for
③
whom are they waiting for
【单选题】
The work will be finished ___________ , but I dont know when.