---Who________ it be that is knocking at the door?
---It ________ be Father, butI’m not sure.
---I've taken someone else's green sweater by mistake．
---It ______ Harry's．He always wears green．
---You’re drinkingtoo much.
---Only at home. Noone ________ me but you.
---As the years passed, many occasions
---birthdays, awards, graduations
---________ with Dad's flowers.
-Ouch! You hurt me!
-I am sorry．But I ________ any harm．
I ________ to drive a rat out．
-Could you ________ me a few minutes?
-Sorry, ________ I'm rally busy now.
-Do you like the picture book ________ him?
-No. I don't think much of it.
---Where is Jenny?
---We saw her _________ upstairs．
---We saw her _________ playing the piano just now．