-Do you know____ second - hand smoke?
一To protect our health and memory.
A how we should prevent B. why should we prevent
C. why we should prevent D. whether we should prevent
-I didn't watch the chat show yesterday.
--. ，I got home too late to watch it
A. so did I B. so I did
C. neither did I D.neither I did
We never doubt____ Bill is honest. Because he never tells lies.
A. that B. if C. whether D. what
-Mum, can I play football?
-No, unless your work____.
A. will do B. is done
C. has done D. will be done
Jack is dishonest. He always ____some excuses for doing something wrong.
A. makes up B. sets up C. takes up D. picks up
-Thanks a lot for offering a great deal of to me in my research.
-It was my great pleasure.
A. ideas B .thoughts C. suggestions D. Advice
