If you ____________ stop smoking, you can only expect to have a bad cough.
Everybody has _____ responsibility to save water, if future generations are to enjoy ____ similar standard of living to the one we enjoy now.
— Do you know when he ________ the trip to the USA?— Perhaps next week, but I’m not sure.
My sister is determined. ________ she has made up her mind, nothing can change it.
Tom’s mother angrily told him ________ games on the Internet.
He has a good command ________ maths and plays an important part ________ our team.