It is uncertain ________ side effect the medicine will bring about, although about two thousand patients have taken it.
A. that B. what C. now D. whether
Take care! _______ to frequent smog does great harm to your health.
A. Exposing B. To expose
C. Exposed D. Being exposed
Anyone _______ be in a rough life time, whether he is “Bai Fumei” or “Gao Fushuai.”
A. must B. will C. can D. should
It is Tom as well as his two friends that _______ for the job.
A. have applied B. have been applied
C. has applied D. has been applied
You may depend on it_______ I shall always help you.
A. that B. what C. which D. whether
--Would you mind giving me advice on how to improve my record?
--If you make _______ most of your potential, there will be ________ rise in your achievement.
A. 不填；不填 B. the; a
C. 不填; a D. the; 不填
