Scientists are working hard to make _______ possible for people to live on Mars in the future.
| A．it | B．that | C．this | D．one |
If it isn’t fine this weekend ,our spring field trip _______.
A. is cancelledB. was cancelled C. will be cancelled
—We failed in the singing competition.
—_______. Better times are waiting for you.
| A．No way | B．Best wishes | C．Cheer up | D．Good job |
He is an honest boy. I have no reason to _______ what he said.
| A．hear | B．doubt | C．repeat | D．believe |
As we all know, the Silk Road _______ China to the west in ancient times.
| A．connects | B．connected | C．will connect | D．is connecting |
Spend more time talking with your parents, _______they may not well understand you.
| A．or | B．so | C．and | D．but |