______ he has made up his mind, no one can make him change it.
| A．Once | B．Unless | C．Until | D．As |
Only by imagining and creating ______ a difference in the future.
| A．can make | B．you could make |
| C．could make | D．can you make |
______that the road was under repair ahead, he had to drive back.
| A．Reminding | B．To be reminded |
| C．Having been reminded | D．Having reminded |
China’s player Wang Hao has retired, with the_____ of an Olympic single’s gold medal his only regret.
| A．ban | B．lack | C．aid | D．aim |
—So David wants to sell the house and move to New York.
— ______. He has found a job there.
| A．I agree | B．No problem | C．What fun | D．Exactly |
—I'll ask the teacher about the attributive clause. I'm very puzzled about it.
—That's just __________ most of our classmates have doubt.
| A．what |
| B．why |
| C．where |
| D．how |