—________ do you Chinese say hello to each other when you meet?
—We shake hands.
A.How B.What
C.When D.Why
________ necessary to return the books to the library.
A.It's B.That's
C.This is D.We are
________ careful! ________ cross the road when the traffic light is red.
A.Be; Not B.Be; Don't
C.Do; Can't D.Do; Don't
Don't touch the cup with your ________. It's too hot.
A.fingers B.machines
C.eyes D.books
Now walking after dinner is a popular way ________ fit and healthy.
A.to stay B.stay
C.staying D.stays
It's dark and they both walk arm ________ arm with each other.
A.at B.of
C.in D.with
