一般现在时和现在进行时

问题描述:

一般现在时和现在进行时
Who____over there now?
A.singing B.are sing C.is singing D.sing
It's eight o'clock.The students______an English class.
A.have B.having C.is having D.are having
Look!The twins _____new sweaters.
A.are wearing B.wearing C.are wear D.is wearing
Listen!The baby _____in the next room.
A.crying B.cried C.is crying D.cries

CDAC