Do you know the man_______ saved five people in the fire

I would like a job which pays more, but______ I enjoy the work I’m doing at the moment.

If you buy ten bottles, the price of each bottle will comedown to 5 yuan.

Barbara lied to me again last night; I can’t take it any more!— That’s not surprising. She is _______ a simple woman.

More and more people find ______ necessary to protect our earth.