Tom, clean up the broken glass _________ someone walks on it.
He asked me___ I would go to Beijing by air the next day。
—I missed the first part of the film. It was really a pity.—You __________ home half an hour earlier.
_____improve her English, Jenny bought a lot of tapes for herself.
----Do you know our town at all? ----No, this is the first time I ____ here.
All my money _____ no more than ten yuan, so I can’t buy the dictionary.