Something funny _____ in class yesterday.
A. happened
B. was happened
C. happens
D. is happened
Giải bởi Vietjack
Chọn đáp án A
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.
