— _____ do you study for a test?— _____ studying with a group.
I don’t know if he ____ tomorrow. If he ____, I’ll tell him about it.
— Shall we go for a picnic tomorrow? —Well, it all ________ the weather.
The old man __________ eats junk food, does he?
Tari Apps(打车软件)can help us travel around more easily.____more and more people like using them.
—Listen ! Helen is singing in the next room. It ____ be Helen. She has gone to Beijing.