Listen! Peter is singing in the classroom! —It _____ be him. He has gone back to his hometown.

Millie wanted to buy Daniel his favourite comic, but there was ___________ left in the shop.

How’s your weekend, Jack?—I spent all time _____ my friends. But sometimes I spend time _____ the internet. [ ]

What does your grandma often do after supper?–She ___ for a walk.

private cars are bringing us convenience, they may also cause traffic accidents and pollution.