We’ll do what we can _________ our environment.
I don’t like eating bread, but I will eat it ___ I have anything else to have.
Everyone likes Nick because he always talks to others _____.
–Shall we go hiking this Sunday?--Sorry, I ___. I’ll have to take a piano lesson.
–I hear some students will go on a picnic this weekend.--_____ them will be Jim. I hope you will be one ____ them.
–Zheng Zhou has changed a lot in the past few years.--Yes. You can see a lot of buildings, trees on ___ sides of the streets.