—Can sixteen-year-olds drive their cars to school? —No. They shouldn"t _____ to
题型：专项题难度：来源：
—Can sixteen-year-olds drive their cars to school?
—No. They shouldn"t _____ to drive because they are not serious enough. |
| [ ] |
A. allow
B. allowed
C. be allowed
D. have allowed |
答案
| C |
举一反三
—Have all the students known that Backstreet Boys will ap- pear to them?
—Yes. Everyone _____ about it. |
| [ ] |
A. has told
B. was told
C. tells
D. told |
| This theory _____ by Einstein. |
| [ ] |
A. put forward
B. had been put forward
C. was put forward
D. has put forward |
—Have you ever heard of Dolly, the cloned sheep?
—Yes, she _____ in Scotland a few years ago. |
| [ ] |
A. created
B. was discovered
C. was created
D. creating |
The postman usually uses a machine to divide the letters into two sorts.
Then the letters _____ from one place to another by car. |
| [ ] |
A. are taken
B. will take
C. are taking
D. take |
—Who is the girl in the picture?
—Haha! It"s me! The picture _____ ten years ago. |
| [ ] |
A. took
B. is taken
C. was taken
D. has taken |
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