A lot of pesticide residue can _____ on unwashed produce.
A. find
B. found
C. be finding
D. be found
Chọn đáp án D
Today, many serious childhood diseases _____ by early immunization.
The man died because medical help was not summoneD. A doctor should _____.
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.’