—How far can you run without stopping?
—________.I've never tried.
| A．Don't mention it | B．That's all right |
| C．I have no idea | D．Go ahead |
Just use this room for the time being, and we'll offer you a larger one（）it becomes available.
| A． | as soon as | B． | unless | C． | as far as | D． | until |
My father warned megoing to the West Coast because it was crowded with tourists.
| A． | by | B． | on | C． | for | D． | against |
Joining the firm as a clerk, he got rapid promotion,andas a manager.
| A． | ended up | B． | dropped out | C． | came back | D． | started off |
Traditional folk arts of Tianjin like paper cutting_______at the culture show of the 2010 Shanghai World Expo.
| A．are exhibiting | B．is exhibiting | C．are being exhibited | D．is being exhibited |
Mark_______have hurried. After driving at top speed .he arrived half an hour early.
| A．needn’t | B．wouldn’t | C．mustn’t | D．couldn’t |