We should take measures to improve ___________ is called the quality of living.

The news came as no surprise to me. Iforsome time that the factory was going to shut down.

We will be shown around the city: schools, museums and some other places, _____ other visitors seldom go.

What are you doing for your vacation—________________________.

May I take this book out of the reading room—No, you______. You read it in here.