用所给词的适当形式填空
Mr.Li_____(begin）his lesson at eight.
Look,he_____(carry)water for the old man.
Lucy often _____(help）her mother____（do ）housework.
There _____(be,not)any tea in the cup.
Please_____(ciose)the window,Tom.
Look at the man.He is______(boat)on the river.
The girl is_____(sit)on the beach.
The_______(children)_______(father)hobby is fishing.
My____(monther)sister is my aunt.
September________(come)after August.