摘要： We must do something to the factories sending out poisonous gases so as to keep the city clean and beautiful. A. keep B. protect C. permit D. prevent
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We must do something to ________ the factories sending out poisonous gases so as to keep the city clean and beautiful.
|
A．keep |
B．protect |
C．permit |
D．prevent |
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We must do something to ________ the factories sending out poisonous gases so as to keep the city clean and beautiful.
- A.keep
- B.protect
- C.permit
- D.prevent
| We must do something to _____ the factories sending out poisonous gases so as to keep the city_____. |
|
[ ] |
| A. keep; being polluted B. keep; from being polluted C. prevent; being polluted D. prevent; from being polluted |
We must do something to ________ the factories sending out poisonous gases so as to keep the city clean and beautiful.
A. keep B. protect C. permit D. prevent
查看习题详情和答案>>We must do something to ________ the factories sending out poisonous gases so as to keep the city clean and beautiful.
| A．keep | B．protect | C．permit | D．prevent |