Animals that could not ____ themselves to the changed environment died and those that could survived.   

 Many people ________ the accident, so it was not difficult to investigate（调查）.

（2014年安徽省合肥市高三第三次教学质量检测）26. Some experts and educators agree that difficulties and hardships can ______the best in teenagers.【考点】考察动词短语辨析

________ true events, the film follows the life of Ali, a world famous boxer in the US.

 — It will be terrible to see the nuclear war happen between U.S and Iran.— That’s right. Nuclear science should be developed to benefit the people ___ harm them.