1.When I (open)............... the door,a friend (stand)....................... there.
2.When I (arrive)........................back at the carpark,my car wasn’t there. “oh,what you(do)...................?” I( report)....................it to the police.
3.We (not see)......................Nga since Monday.
4.Lan (be).....................in the USA for 2 years.
5.I (go) .................to bed at 11 o’clock lastnight.
6.They (move).......................to London in 2003.
7.They (live)..................in HCM city since January.
8.That’s a very old bike.He (have)......................it for a long time.
9.I (buy)...................the motobike 5 years ago.
10.Peter (be)................ill for a week.