People should eat______fat to prevent the ri
People should eat______fat to prevent the ri
we should prevent people ____shooting ___birds.
Should I go to the left, where nothing's right? Or to the ri
What should we do to prevent AIDS
Measure should be taken to prevent this.
What should we do to prevent AIDS?
We should prevent fire( )(burn)the house.
we should try our best to prevent the air pollution _____(li
We should often (change clothes) to prevent the disease.《对括号
I think immediate measures should be taken to prevent the pr
In order to help the farmer,a dam should be built a__ the ri
The poor children tried their best to prevent the people fro