Hei Longjiang is a pretty province __________ a river __________ through it.[ ]

I’m sorry that I can’t pass you any salt because there is_________ in the bottle.

____ will he go back to school?—In a week.[ ]

Your MP4 is quite cheap. Where did you buy ________? I want to buy ________, too.

As is reported, it won’t take a long time ____ the Hefei.