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英语填空?1.Products made of paper___(ctach) fire easily.填will ca

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英语填空?
1.Products made of paper___(ctach) fire easily.
填will catch 还是 catch?
2.After ___(interview) he was oered the job.
3.By the time the brigade___(arrive).the fire_____(be) on for twenty minutes.
4.He has had a difficult time ____(take) care of her sick wife.
1. catch
2. being interviewed
3. arrived/had been
4. taking
解释:
1. 用动词原型,表示物体的特性,这里是容易着火.
2. 在被面试之后,这里应该是表被动的.
3. 当消防队赶到时,火已经持续了20分钟了,这里应该用过去完成时.
4. have time in doing sth固定用法.