the plane was then able to rise这句话的then是什么意思?起到什么作用?

the plane was then able to rise这句话的then是什么意思?起到什么作用? was the plane 请说明原因3.The plane was then able to( )and it cleared the moutains by 400 feet.A.RiseB.RaiseC.ariseD.rouse our plane was then able to rise sharply and in a few seconds it cleared the mountains___ 400 feetA to B for C in D by The plane was then able to rise.这句话我怎么看着这么难受,then就不能放前面吗?Then the plane was able to rise.或者The plane then was able to rise.请问我的写法对不对,也请麻烦各位说出理由,难道then可以用于各 There was a plane ___(fly) in the sky The plane was flying high.. 翻译：the dog was a better postman then l was the plane was then able to riseThe plane was then able to rise and it cleared the mountains by 400 feet.这里的rise怎么没有用过去式呢?怎么是原型啊? When the plane was waiting at the airport a big snake climbed up the steps and into the plane.It 一个简单的英语趣味问答One day,Marine met a acquaitaince on a plane,he said:Hi Jack!,then He was caught by the Air-police.Why?猜对奖分. 英语翻译Two men were sitting together in a plane.They were on a long journey.One of the men was a businessman.The other was a farmer.They sat without talking for a while talking for a while,then the farmer said,“Let’s do something to pass the 英语翻译My first overseas trip was from New York to Paris.I first had to catch a plane to Heathrow Airport in London and then change to another flight.When I got off the plane at Heathrow I saw someone handing out cards to some of the passengers, The boy was very clever.He could make a model plane alone的同义句The boy was clever _______ to make a model plane ________ __________. The boy was very clever.He could make a model plane alone的同义句The boy was clever _______ to make a model plane ________ __________. it was reported a time bomb exploded 10 minutes after the plane took offit was reported a time bomb ____ ____10 minutes after the plane took off 英语翻译As disasters go,this one was terrible,but not unique,certainly not among the worst U.S.air crashes on record.There was the unusual element of the bridge,of course and the fact that the plane hit it at a moment of high traffic.Then,too,the The plane was then able to rise and it cleared the mountains by 400 feet.翻译并解释clear在句中的意思