Do you know? There is one language ____ in every country in the world. People, young or old, short or tall, thin or fat, use it very often. It is everybody’s second ____ . It is very easy to ___, though you can’t hear it. It is a sign language.
When you wave(挥手) to a friend on the street, you are ____sign language. When you ___  up your hand in class, you are saying, “Please ask me, I think I know the answer,” or “I have some questions to ____.” When you smile at someone, you mean to be ____to him. When you put your forefinger(食指) in front of your mouth, you mean, “___ quiet, please.” When a policeman wants to ___cars or buses, he raises his right arm. Sign language is very useful in quiet places or places ___ of noise. It is different from body language.

A．used B．use C．using D．uses

A．sign B．action C．language D．expression

A．write B．say C．express D．understand

A．use B．using C．speak D．speaking

A．look B．make C．put D．Take

A．ask B．say C．answer D．tell

A．friend B．friendly C．kindness D．kindly

A．Take B．Make C．Is D．Be

A．say B．catch C．stop D．prevent

A．full B．none C．made D．some