| 1. Gates and Jobs have been watching television …. 2 hours.hasforsincealreadyyet
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| 2. Jeff Bezos has been swimming for …. .a long timeSeptemberlast nightlast Mondaylast summer
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| 3. Have they been writing …. ?forall the eveningsincejustyesterday
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| 4. Bill Gates …. computer book all this week.has readinghave been reading has been readhas been readinghave
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| 5. …. our son been doing his assignment all night?Have
HavingAreHasHad |
| 6. Has it been …. all night?rainedrainingrainsraina rain
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| 7. …. have been writing a program since 8 o'clock.IItHeSheThem
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| 8. Michael Dell has been listening radio for …. .yesterday
6 hourssick7 o'clocktomorrow |
| 9. I have been …. all the evening.drivingdrivesdrived
drovedrive |
| 10. Our family has been living in Lampang …. May.sinceforyetjustalready
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