动词填空：（每小题1分，共6分）
Anyone who is able ______ (answer) the question may put up his hand.
You must make him ______ (stop) that noise.
The teacher won't let Tom go until he ______ (finish) cleaning the classroom.
Mother ______  (leave) New York for two years.
I will as much as I can ______ (help) you.
There was a man ______ (sit) there with a book in his hand.