I’m sure that if you make good use of your ______ time, your English will be improved in a short time.
The headmaster has got a good education ____ so the school is doing well.
The singer hasn't performed in public for over 5 years. ______, she is very popular with young people.
He did it___it took me.
A modern city has been set up in ____ was a wasteland ten years ago .
In order not to be disturbed, I spent three days_______ up in my study.