根据句意，用括号内所给的词的适当形式填空。
This computer is our ___________(teacher) .
How long do you spend             (chat) with your e-friends on QQ ?
___________(be) all the food on the table now?
Kate has enough money __________(buy) her favourite skirt in the clothes shop.
Thank you for ___________ (tell) me something about Christmas.
I can’t find my pen. May I use _________(you) ?
Would you please help her _________(make) the model plane ?
Jim isn’t in the classroom. He __________(play) football on the playground.
Daniel waits for his parents ________(bring) him the bag.
The teacher tells us __________ (not watch) too much TV.