He has __________ little education that he can’t teach ____________little children

He has read many books on history, so it’s _________ for him to answer these questions.

_______ a teacher, I think I should teach the students not only how to learn but also how to be a man. [ ]

If Tom ________ the game, we’ll give him a surprise.

_____you do, don’t miss this exhibition, for it’s so hard for me to get the tickets.