-To keep safe, everyone_______ wear a seat belt(安全带) in a car.A. is suppose B. are supposed to C. is supposed to D are supposed
I think this small house is a comfortable place .
We are busy__________ the final exams.
Lucy fell asleep_______ she was listening to music.
The books you donated are used to _____ children in need.
His father seldom goes shopping, _______?