| 1. I have been …. all the evening.drivingdrovedrivedrivesdrived
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| 2. Have they been writing …. ?forall the eveningsincejustyesterday
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| 3. Jeff Bezos has been swimming for …. .a long timeSeptemberlast nightlast Mondaylast summer
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| 4. Michael Dell has been listening radio for …. .6 hourstomorrowyesterday
sick7 o'clock |
| 5. Gates and Jobs have been watching television …. 2 hours.alreadyforyet
hassince |
| 6. Bill Gates …. computer book all this week.has readinghas been readhas been readinghave
have been reading |
| 7. Has it been …. all night?rainrainedrainsraininga rain
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| 8. …. our son been doing his assignment all night?HavingAreHasHadHave
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| 9. …. have been writing a program since 8 o'clock.Them
ISheItHe |
| 10. Our family has been living in Lampang …. May.forjustsinceyetalready
|