| 1. Michael Dell has been listening radio for …. .7 o'clock6 hourstomorrowsickyesterday
|
| 2. Jeff Bezos has been swimming for …. .last summer
Septemberlast Mondaya long timelast night |
| 3. Gates and Jobs have been watching television …. 2 hours.alreadyhassinceforyet
|
| 4. Bill Gates …. computer book all this week.have
has been readinghas readinghas been readhave been reading |
| 5. …. our son been doing his assignment all night?HavingAreHasHadHave
|
| 6. …. have been writing a program since 8 o'clock.Them
ISheItHe |
| 7. Our family has been living in Lampang …. May.justsinceforalready
yet |
| 8. Has it been …. all night?rainrainedrainsraininga rain
|
| 9. Have they been writing …. ?justforsinceall the eveningyesterday
|
| 10. I have been …. all the evening.drivingdrovedrivedrivesdrived
|