— We must act now because time is __________.
— Yes. Let’s start.
| A．cutting down | B．running out |
| C．pushing in | D．handing out |
There are some birds_________ happily in the trees.
A. sing
B. are singing
C. singing
______ good advice you have given to me!
A. What B. How C. What a
If you want to go to the mountains this evening, so ______ I.
A. do B. will C. am
---Are you satisfied with the result of the competition?
---Not, not at all. I can’t have ______.
A. a better one
B. the worst one
C. a worse one
The People's Republic of China ______on October 1, 1949.
A. found
B. was founded
C. was found