The air pollution is serious, ________ we must try our best to reduce it. A. so B. or C. if
Mary is flying to France soon. She will arrive ______ London _____ the morning of July 19.
Alice be at school because she phoned me from her home a minute ago.
After discussing, the students some good ideas to work on the projects.
He is a _____ boy, so he can’t go to the park by himself.
I have a good friend would like to speak to you.