Mr．Liu waiting here for about five minutes．（ ）
| A． |
has been |
B． |
has come |
C． |
came |
D． |
arrived |
— ________ have you been a member of the Helpers’ Club?
— For two years.
| A． |
How soon |
B． |
How long |
C． |
How often |
—May I ________ your pen? I can’t find mine.
—Sure. Here you are.
| A． |
repair |
B． |
make |
C． |
borrow |
—Betty, you’d better follow the doctor’s ________ and do more exercise.
—I will. Thank you.
| A． |
advice |
B． |
agreement |
C． |
information |
Please ________ the lights when you leave the room. Be a greener person.
| A． |
turn off |
B． |
turn on |
C． |
turn up |
As the art festival is coming, they are preparing everything by ________.
| A． |
yourselves |
B． |
ourselves |
C． |
themselves |