________of the students in our class are from the north.

They will study _____ home _____ computer. [ ]

Zhang Lili, _________ good teacher, is regarded as _________ most beautiful teacher at present.

Take care of your child.I saw him walking____the river. It’s dangerous.[ ]

It’s difficult for the village children to cross the river for school.— I think a bridge _______ over the river.