单项选择题
A．How can I do that B．Are you going today C．Did you get it D．Do you have that E．Would you like my help F．Yes，I know G．NO，I don’t know H．Can I sell my used books
A. Sophomores B. Freshmen C. Seniors D. Juniors
A. Our runny nose stops our breath. B. Our temperature rises to make us feel miserable. C. Our blood rushes into our cells. D. Our nose, fever, and blood work together to kill virus.