---May we go home mow ?
--- No, you____. You____ to go home until 5 o’clock.
| A．mustn’t; are allowed |
| B．don’t have to; are supposed |
| C．needn’t; aren’t allowed |
| D．can’t; aren't supposed |
Are you going to try out for the host of the English party？
_____？ It is such a good chance to improve my spoken English．（ ）
A．What's upB．What's wrong
C．Why meD．Why not
I_____you here， but you didn't come．
I'm terribly sorry． I was so busy that I forgot．（ ）
A．would expectB．was expecting
C．am expectingD．have expected
Can you describe____？
Yes． I was walking when a bike knocked me down from behind．（ ）
A．why did the accident happen
B．when did the accident happen
C．how the accident happened
D．where the accident happened
As an American， Tom is a big fan of Chinese kung fu．____， he is crazy about Beijing Opera．（ ）
A．ThereforeB．HoweverC．MoreoverD．Otherwise
Manager， all the machines____just now!
What？ Call the engineer at once．（ ）
A．broke downB．turned down
C．broke outD．turned out