I doubt Sam will be the new chairperson of the Students’ Union. I don’t think he’d be able to organize things well.
Yao Ming is a famous basketball star_______ is playing in the NBA .A. which B. who C. when D. where
Whose guitar is this? Susan plays the guitar. It must _______.
_________that river ________very clean?
If I _______ you , I _______ do that .
I pretended ________her when I walked by.