Are you _________ of the dark —Yes, so I always go to sleep with my bedroom lights __________ .

He ______in this city since his family moved to Nanning.

The problem of air pollution is becoming more serious ______ the increasing number of cars

gital mobile phones definitelyproduce less radiation, but that doesn’t meanthat they should be used without caution.

I have learning math and I’m so worried. Could you help me—Sure. I’d be glad to.