---What’s this ?---_____________.A.This is a pencilB. Fine, thank youC. This is pencil
Jackie is only three years old __________ he can draw very well.
Gao Yan is__________ Zhao Fen and Li Min.
__________ chocolate isn’t good for you.
—How many __________ are there in your class? —Twenty-two.
My mother is __________ English teacher in a middle school.