The Obama government has reformed on tax system.What people doubt is ______ it will do them any good.
–You just said you hate your brother. Why?– He is a black sheep of the family, always _____ trouble to my family.
_____ playing dumb with teachers. They know very well their students.
Mr. Smith owns __________ collection of coins than anyone else I have ever met.
Most of my friends will go hiking next Sunday. The rest ______ to see a new film.
一I enjoyed a very good holiday in Shuangqiao. -__________.