As we all know, planting trees is good for the environment. Our class will go to the Sun Island tomorrow. As soon as we there, we’ll begin to plant trees.A. arrived B. arrive C. will arrive
The first thing _____ I should do is to work out a study plan for the next term.
_____ of the water _____ polluted. We must try to protect our environment.
He is so poor that he has no house _____.
The stones are so heavy. How _____ they _____ to the top of the building without modern machines?
No free plastic bag in the supermarket helps to _____ white pollution.