请根据所给词的适当形式填空。
1. Tom wants to ____________ (buy) a postcard today.
2. Go straight for five ____________ (minute).
3. Usually he ____________ (walk) to school every day.
4. This is my book, that is ____________ (you).
5. Sarah ____________ (take) a trip next week.

I am _____to an art museum tomorrow.  （    ）

A．go

B．going

C．goes

Today is December 24. Christmas _______. (   )

A．is coming

B．comes

C．come

What are you going ______ (do)?

I ______ take the green one. （   ）

A．is

B．will

C．am