| There is still _____ who said he was _____ to reach the top of the mountain besides these two people. |
A. a third one; the first B. the third one; the first C. the third one; first D. a third one; first |
| It has been proved ____ eating vegetables in childhood helps to protect you against serious illnesses in later life. |
A. if B. because C. when D. that |
| ____ is known to us all is that the 2008 Olympic Games took place in Beijing. |
A. It B. What C. As D. Which |
| — This returned Chinese scholar has become one of the top experts in this field. — Yes. I know him very well. He _____ in Africa with wild animals for eight years. |
A. is working B. had worked C. worked D. has been working |
| _____ you have seen both fighters, _____ will win? |
A. Since; do you think who B. As; who you think C. When; whoever D. Since; who do you think |
| Mr. Black, who was _____ of the _____ speech, stood up and left the hall. |
A. tired; boring B. tired; bored C. tiring; bored D. tiring; boring |
| While you are talking to a friend over the phone, you feel that you are close to each other _____ the actual distance is not short. |
A. as if B. even if C. so that D. as though |
| — Has the doctor arrived yet? — No, she _____ an hour ago. |
A. has to come B. ought to have come C. should come D. used to come |