He pretends _______this thing.A、not know B、not knowing C、not to know
Do you like music ____makes you excited?
This is the first thing you are ________ after you get there.
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?