-Do you know_______ second-hand smoke?
-To protect our health and memory.
A. how we should prevent B. why should we prevent
C. why we should prevent D. how should we prevent
It's foggy today. I'm not sure _______ the highway will be closed soon.
A. whether B. when C. how D. why
_______ the students_______ their teacher know about the four people.
A. Both…and… B. Not only…but also…
C. Neither-…nor… D. Either…or…
Super Brain is_______ an interesting TV program_______ many people like watching it.
A. so; that B. such; that C. so; as D. such; as
My mother keeps all the things in my family in good order. She is_______.
A. creative B. curious C. energetic D. organized
_______(A)award music for the Beijing 2008 0lympic Games was written by Tan Dun, _______ world-famous composer.
A. The; a B. The; the C. /; the D. /; a
