--Why are your eyes so red? You _______ have slept well last night.
---Yeah, I stayed up late writing a report.
| A．can't | B．mustn't | C．needn't | D．won't |
The number of traffic accidents caused by drinking is ____ as the number of those caused by non-drinking driving．
| A．as twice many | B．many as twice | C．as twice large | D．twice as large |
In China ______ graduates go abroad to have a further study every year ．
| A．a great deal of | B．many a | C．masses of | D．a plenty of |
----- Where did you get to know her?
---- It was on the farm _______ we worked．
| A．that | B．where | C．there | D．which |
——I’m sorry , but there’s no smoking on this flight ．
——Oh, I _______that ．Sorry , I won’t again ．
| A．don’t know | B．didn’t know |
| C．won’t know | D．haven’t known |
—— It seems that his health is improving．
—— Yes．It is ten years ______ he _______．
| A．since； smoked | B．since； did n’ t smoke |
| C．that； smoked | D．before； smoked |