题目内容

The world _________. Things never stay the same.
A．changedB．is changingC．was changingD．will change
B
本题考查现在进行时的基本用法。本题的含义为世界一直在改变，事物从来不保持一样。根据句意可知本题使用现在进行时，结构为be+动词的现在分词，本题主语为单数第三人称，故用is，故本题空格处填is changing，故本题选B。
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