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高中英语时态选择题1.You can go and take a rest.I'll see to it that th

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高中英语时态选择题
1.You can go and take a rest.I'll see to it that the job -----finished in time.为什么选择B不选择A呢?A.must be B.is C.be D.has2.She ----- her hairstyle in her hometown before she came to London for a better job.为什么不选择B呢?A.changed B.has changed3.Roman Empire ------for centuries.为什么选择B不选择C呢?A.has existed B.exsisted C.was exsisting4.She ------law the moment she has finished middle school.为什么不选A呢?A.is going to study B.is to study5.Great efforts to increase wheat production must be made if bread shortage -----avoided.为什么选择A呢?这句话的意思是什么?A.was about to B.was to谢谢啦.
高中英语时态选择题1.You can go and take a rest.I'll see to it that th
1、主句是将来时,从句的时态用一般现在时即可.没有必须的意思.2、before从句是一般过去时,因此主句不可能使用现在完成时.3、罗马帝国已经不存在,当然不能用现在完成时.4、the moment引导的时间状语从句表示“一...就...”的意思,动作发生的时间间隔短,因此用be to do比用be going to do时间要短.5、按说这道题没有答案.主句是must be made,if从句应该用现在时或着用虚拟语气“were to do”