Bob and David are friends. ______ of them works in the art club as volunteers.
A.All B.Both C.Each
—__________ do you have a school trip in your school?
—Once a year.
A.How long B.How often C.How far
__________ my grandfather is very old, he can remember many things clearly.
A.Since B.Because C.Although
I have quite a few hobbies, __________ swimming and skating.
A.for example B.such as C.like
A smile costs __________, but gives so much.
A.something B.nothing C.anything
You should __________ your problems with your parents, they can help you.
A.share B.bring C.give
