I’m sorry, I____________ the bookin my home.

One of our ____ will come to stay withus. — Who’s that— It’s our father’s cousin.

— Why do you look so worried? — My computer broke down last week and my essay has been left ________ since[ ]

The data shows the situations of the world economy ________ careful observation and detailed studies.[ ]

28. Our schoolmaster tried his best to make our teaching methods _____ to the concerning parents at the press, who are eager to send their child to our school.