—Jim, who taught ________Chinese before you came to school?—Nobody. I learned it by _______.
--- Can I look at the menu for a few more minutes before I order? --- Of course. _______, Sir.
We had to wait half an hour we had already booked(预定) a table.
My iphone 5 needs to be repaired. How much do you think it _____?
— Will you attend the meeting this afternoon? — But I __________ anything about it yet.
---I don’t think you saw him just now. --- .I did see him yesterday.