【正文】
He was about to get off the bus ________ he saw his father. A. as B. until C. while D. when 2. Visiting the Great Wall made me greatly ________. A. delight B. delighted C. disappointed D. exciting 3. ________ you have known it, there’s no need to tell you. A. Why B. After C. While D. Now that 4. What the doctor said ________ persuading him to stop smoking. A. did play an important part in B. succeeded in C. failed in D. did make use of 5. Let me introduce the ________ who has recently discovered a new star. A. photographer B. astronomer C. politician D. cosmonaut 6. Oh, you gave us! A. What a pleasant surprise B. How pleasant surprise C. How a pleasant surprise D. What pleasant surprise 7. — Do you ________ what Ja said about the aliens? — I’m afraid not , though I ________ her. A. believe; believe in B. believe; believe C. believe in; believe D. believe in; believe in 8. We ________ have proved great adventurers, but we have done the greatest march ever made in the past ten years. A. needn’t B. may not C. shouldn’t D. mustn’t 9. Most of the ________ of the play are from the other words, they are ________ and not ________. A. actors; amateur; professional B. players; amateur; professional C. actors; profession; amateur D. players; amateur; profession 10. She had just finished her homework ________ her mother asked her to practice playing the piano yesterday. A. when B. while