All the students in my class can’t ______ the math problem. It’s too difficult for us.A. work on B. work out C. work for
–Excuse me, haven’t you learned the new law? Everyone in a car must wear the seat belt. -- Sorry, we won’t do that again.
—Help yourself to some more meat,Linda. —____.
Mr.Smith used to ____ his car to work,but now he is used to ________.
The charity provides homeless people ________ food and clothes.
—What are you going to do when you grow up? —A singer,but my parents wish me ________ a teacher.