______ your article carefully, some mistakes can be avoided.
A. Check B. If you check C. Checking
--______ are you in?
--I am in Class One.
A. Which school B. What class C. Which grade
This is ______ new watch. I like it very much.
A. my B I C. me
I usually get up early ______ the morning.
A. in B. on C. at
Daming runs ______ of the three.
A. fast B. faster C. the fastest
There is a______ on the desk.
A. cups B. book C. rulers
