A.sleep
B.stress  
C.accidents  
D.eating junking food

A.physicist
B.digestion  
C.professor  
D.discover

A.You can’t go out with your friends in case you cannot finish your homework by 5 p.m.
B.Unless you finish your homework by 5 pm, you can go out with your friends.
C.You cannot go out with your friends provided you finish your homework by 5 p.m.
D.As long as you finish your homework by 5 p.m., you can go out with your friends.

A.The trip is not too long for the man to take.
B.The man is too old to take such a long trip.
C.The old man has refused to take such a long trip.
D.The man is young enough to take such a long trip.

A.Why do you say so?
B.Thanks. That’s a nice compliment.
C.Sorry, I don’t like it.
D.I think so.

A.Why not?
B.Beat me!
C.How come?
D.You bet!

A.course
B.school  
C.class  
D.term

A.course
B.school  
C.class  
D.term

A.important
B.worth  
C.useful  
D.necessary

A.arts
B.papers  
C.notes  
D.skills