We must do something to ________ the factories sending out poisonous gases so as to keep the city clean and beautiful.
| A．keep | B．protect | C．permit | D．prevent |
24. —Who______ it be that is knocking at the door?
—It ______ be father, but I’m not sure.
| A．can; must | B．can; may | C．must; can | D．may; must |
23. Lewis was much admired ______ his work on the advanced medical research.
| A．for | B．in | C．on | D．with |
The chairman asked me to ______my speech to 20 minutes.
| A．make | B．give | C．limit | D．explain |
第二部分：英语知识运用（共两节，满分45分）
第一节：单项选择（共15小题；每小题1分，满分15分）
从A, B, C, D四个选项中选出最佳选项。
—Thank you for your wonderful meal.
—______.
| A．No, it was just so-so | B．The same to you |
| C．No, that’s all right | D．It’s my pleasure |
--- Whom should I give this dictionary to?
--- You may give it to ______.
| A．whoever you think needs it most | B．whomever you think needs it most |
| C．anyone needs it most | D．someone who needs it most |