---I think English is ____unimportant subject.---I don’t think so. It is ____useful tool when we talk with foreigners.
-Is Sally from America?- Let me ________.
Bill is ___________ classmate. He is a friend of ____________, too.
–Is that colourful pencil-box Bob’s ? – No, it isn’t __________. It’s _________,
–What colour is that kite? - _____________.
Please ____________your rackets __________ your desk.