| 1. Gates and Jobs have been watching television …. 2 hours.sincealreadyforhasyet
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| 2. Jeff Bezos has been swimming for …. .Septemberlast Mondaya long timelast nightlast summer
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| 3. Bill Gates …. computer book all this week.has readinghas been readhas been readinghave
have been reading |
| 4. …. have been writing a program since 8 o'clock.ItSheHeIThem
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| 5. Have they been writing …. ?justforsinceall the eveningyesterday
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| 6. Michael Dell has been listening radio for …. .yesterday
6 hourstomorrowsick7 o'clock |
| 7. Our family has been living in Lampang …. May.sinceforyetjustalready
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| 8. Has it been …. all night?a rain
rainrainedrainsraining |
| 9. …. our son been doing his assignment all night?HavingAreHasHadHave
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| 10. I have been …. all the evening.drivingdrovedrivedrivesdrived
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