The people were afraid, because the tiger had escaped _________ the zoo.

Work hard, ___________ you’ll get good grades.

Last night Dad and Mum didn’t come back home ________ I finished my homework.

We all love our English teacher, He always makes his English class very ________.

--------I often have hamburgers for my breakfast.

--------You’d better not. It’s bad for you _________ too much junk food.

-----Do you know the man ________ is reading the book over there?

--------- Yes, he is Mr. Green, our P.E. teacher.

Trees __________every year to make our city greener.

----- Can you ride a horse?

--------No, I ________.

We must keep the classroom ___________.

-----It’s an exciting film. I’ve just seen it.            -------------_____________.