There is ____ office on the first floor(一楼).
- Can you help me clean the room?- OK, _______ I have to wash the clothes first.
Everybody knows that blind people shouldn’t _______.
I think _______ is meaningful to help other people.
Great changes _______ in our country since 1990.
- Have you seen the film Kongfu Panda?- No. but some of my friends _______.