The plane before they the airportThe plane____before they___the airportA.had taken off...reached B.has taken off...reachedC.took off...had reached D.was taking off...have reached不及物动词(短语)无被动语态,排除D 接下来怎么选
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The plane before they the airport
The plane____before they___the airport
A.had taken off...reached B.has taken off...reached
C.took off...had reached D.was taking off...have reached
不及物动词(短语)无被动语态,排除D 接下来怎么选
A
reached(过去) had taken off (过去的过去 用过去完成时)
请及时采纳,不懂继续问( 天天在线 )
选A,在他们到达机场之前,飞机(早)起飞了。 指飞机起飞这个动作先于他们到达这个动作,所以前面用过去完成时,后面用过去时。顺便提一句,过去完成时的用法正是表示一个动作先于另外一个过去时的动作发生。为什么不能是C呢,飞机起飞之前他们就到了,同样是过去完成时你逻辑错了,这里是指在到达机场之前,飞机已经起飞。那你想一下哪个动作在先?...
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选A,在他们到达机场之前,飞机(早)起飞了。 指飞机起飞这个动作先于他们到达这个动作,所以前面用过去完成时,后面用过去时。顺便提一句,过去完成时的用法正是表示一个动作先于另外一个过去时的动作发生。
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