Two thirds of the subway construction ____ so far and people will enjoy a fast a
题型：模拟题难度：来源：
| Two thirds of the subway construction ____ so far and people will enjoy a fast and convenient trip under the city early next year. |
A. have been completed
B. is being completed
C. has been completed
D. will be completed |
答案
举一反三
— Can you tell me what time the flight to Detroit leaves?
— I"m sorry, but it ____ due to the fog. |
A. has been canceled
B. had been canceled
C. has canceled
D. had canceled |
| The first edition ____ in 1955 and ____ a best seller ever since. |
A. was published; had been
B. had been published; had been
C. has been published; has been
D. was published; has been |
| His sister left home in 1998, and _____ since. |
A. had not been heard of
B. has not been heard of
C. had not heard of
D. has not heard of |
| What he regrets is that more than a chance _____. |
A. were given up
B. is given up
C. has been given up
D. have been given up |
| When and where to build the new factory _____ yet. |
A. is not being decided
B. has not been decided
C. are not decided
D. have not decided |
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