In American there are more households with pets than ____ with children.

Some parents are just too protective. They want to ______ their kids from every kind of danger, real or imagined.

（2014年山东日照市高三校际联合检测）5．He said he would pick me up home after work．He didn’t，______．

When he picked up a large sum of money by accident, he battled with his _____ whether he should keep it or return it to the owner.

“Tommy，run！Be quick！The house is on fire！”the mother shouted，with ________ clearly in her voice.