The house rent is expensive. I’ve got about half the space I had at home and I am paying ______ here.[ ]

There is a bridge _____the river. —Be careful when you ______it.

We should clean _____ every day

Could you help me with some math problems–Sure. That’s _______ I’m here.

The big fire in Shanghai, believed to ________ due to the burning of construction materials, caused 58 deaths and destroyed all the belongings of the people there.[ ]