We should protect the earth because it's home to ___ _ animals.
A. million B. millions
C. million of D. millions of
The police told the boys ___ _ in the street .It was dangerous.
A. don’t to play B. to not play
C. not to play D. not play
— What about going to the zoo by bus? — ___ _.
A. A little B. It doesn't matter
C. That's bad D. Good idea
It is difficult ___ _ me ___ _ English well. But I’ll study harder.
A. to, learn B. for, learning
C. for, to learn D. to, to learn
I think Kate is better at playing basketball because she is __ than Jenny.
A. shorter B. quieter
C. taller D. fatter
___ _ travel all over China during the summer holiday?
A. Why not you B. Why don't you
C. What about D. It is a good idea
