You cannot accept an opinion ________ to you unless it is based on facts.
—What do you think of the book? —It’s ______ a book. It serves as (充当)a really good guide to job hunters.
The man ______ house I have stayed in for two months has some money trouble.
If you’re a poor driver, you should not_______ at night.
The snow is so deep. We can hardly get out of the house, ______?
He, along with his sister, ______ how serious the situation is.