What are your rules on tiger (protect)?
We need warm clothes to (保护) us against the wind.
There are fifty students in the small classroom. It is too c_____
The more you eat, you will be.
A.the heavy B.the heaviest
C.the heavier D.heaviest
There a sports meeting next week.
A.is going to have B.is going to be
C.will have D.are going to be
— has Jack been studying English?
—Since he was seven years old.
A. How long B. How often
C. When D. While
