在新闻标题中寻找分词

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Now, you try it! Examine the four headlines from today's story. Decide which words have been left out. Then, write the headlines as complete sentences in the comments. If there are no words missing, write "nothing missing." Here they are again:

Laughter May Be Effective Medicine for These Trying Times

World Becoming Less Accepting of Migrants, Poll Finds

Pennsylvania online voter services restored following outage

Nobel Prize awarded for discovery of Hepatitis C