It’s so cold today. Don’t keep the window ___________.
Do you play ____ violin in your free time ? No, I like doing sports. I often play ____ table tennis with my classmates.A. /…the B. the…/ C. the…the
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?