The world _____ . Things never stay the same.

A．changes B．is changing C．was changing D．will change

B

解析試題分析：句意：世界正在發(fā)生變化。事情不會(huì)永遠(yuǎn)保持不變。結(jié)合語(yǔ)境可知本句描述的是現(xiàn)在正在進(jìn)行的動(dòng)作，故用現(xiàn)在進(jìn)行時(shí)態(tài)。選B。
考點(diǎn)：考查動(dòng)詞的時(shí)態(tài)。

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