Today, many serious childhood diseases _____ by early immunization.
A. are preventing
B. can prevent
C. prevent
D. can be prevented
Chọn đáp án D
Last night a tornado swept through Rockville. It _____ everything in its path.
Vitamin C _____ by the human body. It gets into blood stream quickly.
‘Has the commitee made its decision yet?’
‘Not yet. They are still _____ the proposal.’
The man died because medical help was not summoneD. A doctor should _____.