It is better for you to walk down the stairs instead of ________ the elevator.
There was a big earthquake in Japan, but luckily many people ________.
—Have you ever been to Shanghai? —Yes,I________there a few months ago. A.have been B.went C.have gone
I _______my homework,I guess I can't join you.
My sister wants a new dress. She ________it to the party.
—Please turn off the TV. The baby ________.—OK. I'll go out for a walk.