－What does your father do, lily －He is _________. His job is to make sure that drivers obey the traffic rules.

Why do many people keep dogs as pets—Because they are our ____ friends and theynever desert their masters.

must have been a terrifyingexperience.—Yeah. I _____ in the damaged car, unableto move.

ard that as many as 100 people were killed in the disaster—Yes, newscame as shock tome

________ lack of interest, Tom kept trying hard to catch up with others