Tom’s mother told him _______ eating too much meat.

I don’t know _____ next.

All the children like Mr. White very much because he often makes them _______.

When the teacher came in, he saw some boys _______ behind Daniel, _______ the computer games. 

-- Our English teacher tells us that ______ grammar is a good way to learn English.--And our teacher says _____ also helpful to sing English songs.