He was excited because he the 2015 National Youth Games(青运会). A.joined in B.takes part in C.join
He likes playing _____ guitar, but he doesn't like playing _____ volleyball.
---Let's play baseball.---_______ .
Does he has a tennis racket? ________
Where are the books ? ________ on the desk .
Is this _______ key? No,that one is _______