You have to be six years old before you _____ to go to school. [ ]A. will al
题型：同步题难度：来源：
| You have to be six years old before you _____ to go to school. |
| [ ] |
A. will allow
B. are allowed
C. have allowed |
答案
| B |
举一反三
| Things should _____ here before you enter the Great Museum. |
| [ ] |
A. keeps
B. keep
C. be kept
D. are kept |
| I don"t think sixteen-year-olds should _____ to go to bars. |
| [ ] |
A. allow
B. allowing
C. be allowed
D. not allow |
—You see, China is becoming stronger and stronger now.
—Yes. That"s why Chinese _____ to more and more. American kids these days. |
| [ ] |
A. are taught
B. is taught
C. has taught
D. have taught |
—How old is the bridge over there?
—Oh, very old. It _____ about three hundred years ago. |
| [ ] |
A. is built
B. was built
C. is building
D. has built |
—When _____ the Capital Museum _____?
—In 2005. It"s been one of the symbols of Beijing from then on. |
| [ ] |
A. is; built
B. has; been built
C. will; be built
D. was; built |
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