Some parents don’t allow their children to go online ________they are affected by something unhealthy.[ ]

－Excuse me， where can I buy a skirt－You can go to the Women’s Clothing Store on _______floor.

He called another girl, ______ was more suitable for the position

It cost me 30 yuan to get here—Well, it was crazy of you to take a taxi _______ you could come by bus as well

There is _______ 11-meter-long bridge over______ river.