— When did Mr Green teach in China?
— _______.
| A．Since five years ago | B．For five years | C．In five years | D．Five years ago |
—Whenever you have difficulties, be sure to call me.
--________________.
| A．I have no trouble |
| B．I am sorry to hear that. |
| C．I will. Thank you very much. |
| D．I will think it over. |
—The news reported that the rainstorm was in the area last night.
--Yes. ______ bad weather it was !
| A．What a | B．How a | C．What | D．How |
--Are you going to Sam's birthday party the day after tomorrow?
--I'm not sure. I will go with you if I ____
| A．will invite | B．invite |
| C．will be invited | D．am invited |
If all of us pull together, there must be something we can do _____.
| A．improve the environment |
| B．to improve the environment |
| C．improving the environment |
| D．improved the environment |
—I went to visit you yesterday evening, but you weren’t in. Where were you then?
--Oh, I ______ with my pet dog in the park. I _____ this dog for three days and it’s very cute.
| A．was walking, have had |
| B．walked, bought |
| C．was walking, have bought |
| D．walked; have had. |