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