We should save energy by _________ the lights when we leave a room．（ ）
A．getting offB．showing off
C．taking offD．turning off
I'll have a ten﹣day holiday．But I don't know______，
How about Paris？（ ）
| A． |
what to do |
| B． |
where to go |
| C． |
when to go |
_____do you play basketball？
Usually twice a week．（ ）
| A． |
How soon |
B． |
How long |
C． |
How often |
Teachers' Day is ______ September 10．（ ）
| A． |
in |
B． |
on |
C． |
at |
Sally，there's a pen on the floor．Is it yours？
Oh…yes．It's_____．Thank you．（ ）
| A． |
mine |
B． |
yours |
C． |
hers |
To be______good dancer，you need to learn more．（ ）
| A． |
the |
B． |
a |
C． |
an |