Things worthy ______ should be done without delay.
| A．doing | B．to do |
| C．being done | D．to be done |
“It’s raining too heavily at this moment,” said the old woman, ________ out of the window.
| A．to look | B．looking |
| C．having looked | D．looked |
It is very ______ that she will ring me tonight.
| A．likely | B．possibly |
| C．probably | D．perhaps |
—I’m afraid I have to leave for New York tomorrow.—_____
| A．I’m afraid not. | B．Have a good journey. |
C．Please do. | D．Why not go now? |
---Believe it or not, I have met him before.
---No kidding? ______ you’ve never mentioned it?
| A．What if | B．What for |
| C．How come | D．How about |
It is our duty to try to ______ production and reduce the number of things we make and buy.
| A．cut back on | B．put up with |
| C．hold on to | D．run out of |