If a computer crashes, you will lose the file you ______ on if you don't save it early enough.  

试卷相关题目

• 1—Have you decided when to leave for Beijing?—Yes, I ______ the day after tomorrow.

  A.am leave

  B.have left

  C.left

  D.am leaving

  开始考试点击查看答案
• 2Hurry! The train ________. You know it ________ at 8: 00

  A.m.. A.leaves; leaves

  B.leaves; is leaving

  C.is leaving; leaves

  D.is leaving; leaving

  开始考试点击查看答案
• 3Remember to save what you ________ on once in a while in case the computer suddenly crashes.

  A.work

  B.will work

  C.are working

  D.worked

  开始考试点击查看答案
• 4Professor Smith, along with his assistants,______ on the project day and night to meet the deadline.

  A.work

  B.have worked

  C.is working

  D.are working

  开始考试点击查看答案
• 5—  Ready to quit guessing, Sandy?— No, no, I hold on! I think I______ to the answer.

  A.come

  B.have come

  C.am coming

  D.came

  开始考试点击查看答案
• 6They ____ on the program for almost one week before I joined them,and now we ____ on it but no good results have come out so far.    

  A.had been working; are still working

  B.had worked;were still working

  C.have been working;have worked

  D.have worked; are still working

  开始考试点击查看答案
• 7— How long ____ you ____ in the country with your grandparents, Henry?— About four weeks. I'll return as soon as school starts.

  A.are; staying

  B.did; stay

  C.do; stay

  D.had; stayed

  开始考试点击查看答案
• 8Hurry up! The train ______. You know it______ at 8:30 am.

  A.leaves; leaves

  B.is leaving; is leaving

  C.leaves; is leaving

  D.is leaving; leaves

  开始考试点击查看答案
• 9— Why are the Woods selling their belongings? — They _____ to another city.

  A.had moved

  B.have moved

  C.moved

  D.are moving

  开始考试点击查看答案
• 10I don't really work here. I ____ out until the manager comes back.

  A.just help

  B.has just helped

  C.am just helping

  D.will help

  开始考试点击查看答案