Ⅰ.单项选择。(1×60=60)
( )1. ------What’s this in English? ------It’s UFO.
A． a B．an C．the D．/
( ) 2. This set of keys Helen’s. Those sets of keys yours.
A．are; are B．is; are C． are; is D．is; is
( )3. Peter can play_____ piano，but he can't play_____ soccer．
A．the；the B．the；/ C．/；the D．/；a
