----There are sixty students in our class, and _________of us are boys.----Wow! You have forty girls.
He has saved lots of people’s________ since he came to this hospital last year.
Please clean the room at once, it’s too ______.
This handbag is Mrs. Li’s now, but it belonged to ______ a week ago.
The boy is very strong. He can swim ______ the wide river several times.
Don’t forget ________ the lights before you go to bed.