---Della, would you like some potato chips? ---No potato chips for me---I’m ______ a diet.
____ hands and knees Helen Thayer got the tent up.
The woman looks so worried. She seems ____ something valuable.
For women life sometimes seems ____ it is for men.
____ his homework, the boy went out to play games with his friends.
Guilin is famous ____ its beautiful hills and rivers, while Kunming is famous ____ the Spring City.