| 1. Bill Gates …. breakfast already.have havehas hadhas havehave had
has has |
| 2. Have you seen this program …. ?yesterday
yetnowtomorrowjust |
| 3. Alan Kay has borrowed my notebook since …. .4 daysSunday3 hours5 monthstomorrow
|
| 4. …. he given your smartphone back already ?HaveAreHasIsAm
|
| 5. …. has tried to do his best.Them
Alan TuringWeTheySteve Jobs and Bill Gates |
| 6. Mr.Johnson has taught Computer for …. .tomorrow
last monthyesterday1 yearslast year |
| 7. Has Steve had lunch …. ?tomorrow
justlast nightalreadynow |
| 8. That boy and his friend …. their way.do lostare losehad lose
have losthas lost |
| 9. He …. given it back yet.have notdoes nothas not do notdid not
|
| 10. Steve Jobs and Bill Gates …. washed the car yet.have nothavehas notnot havenot
|