People should _________ down trees in order to protect the e
英语语法 in order to remind people to protect trees,we put up a
People should protect animals in order to keep a b______ of
in order not to let the other people down 这里的down怎么理解啊
To protect the environment,more trees _____ in our country e
people plant more and more trees to protect the earth
In the p___ people used to cut down trees and never took car
The people should take actions to protect the _____________(
People should spare no efforts to protect the environment.
People must down the trees
In order to protect our environment,we should r_____ in cars
句型转换 We should plant more trees to protect the ea
We should do something to protect the animals in danger_____