__________ are my sisters．This is Alice，and this is Lily．

Mum, would you please buy me an MP5 player? — If you can help do some housework the whole vacation, you ____ have one as a reward.

He always ______ his friends about everything. In fact , he has no thoughts of his own.

There are floors in my house and my bedroom is on the______floor.

I once lived in a house _______ roof has fallen in.