The young tribal man helped Mrs. Davidson find her way back, in return for________medical equipment was offered to him by the latter.
I would like to give you some money, but _______I haven’t got any.
The man, ____so badly, almost lost his memory and even was driven mad.
One you_____drugs, it’s hard to manage to get rid of them.
When the teacher found some of his students getting nervous at the examination, he told them to _____ .
____you had worked hard, you would have easily passed the final test.