-Could you tell me_______ last night ？
-About ten．（ ）
| A． |
when was the party over |
| B． |
when the party was over |
| C． |
when is the party over |
| D． |
when the party is over |
Don't get off the bus until it ．（ ）
| A． |
will stop |
B． |
stop |
C． |
stopped |
D． |
stops |
His office is on the top of the tall building． You should take a lift to the floor．（ ）
| A． |
first |
B． |
thirtieth |
C． |
thirty |
D． |
thirteen |
The air pollution is very serious in our city． Something about it now．（ ）
| A． |
can do |
B． |
must do |
| C． |
was done |
D． |
must be done |
The Great Wall is a place of interest． All of us there before．（ ）
| A． |
has been |
B． |
have been |
C． |
has gone |
D． |
have gone |
Would you like to play table tennis with me this afternoon？
I'd like to． I'm afraid I have no time．（ ）
| A． |
So |
B． |
Or |
C． |
But |
D． |
And |