I-
1.Ms. Baker has washed the dishes for 5 minutes.
2.We haven't seen them for several weeks.
3.Have you seen Jack since the party last week.
4.They haven't heard any noise for many hours.
5.Paul has studied hard since yesterday.
6.The singer has sung 4 songs since the concert began.
7.David hasn't phoned his girl friend for ages.
8.Me.Harry has worked for this company since 2000.
9.Kate has worked on her novel for 1 year.
10.This factory has produced a lot of cars for about a century.
II-
1.I have lived in HN since 2009.
2.I have played tennis for 2 months.
3.Thomas has known Linda since they were at university.
4.Jim has been on holiday since Sunday.
5.Jason has had this backache since this afternoon.
6.I have owned that car for two and a half year
7.They have been interested in languages for many years.
8.They have been satellites in space since 1957.
9.My mother has been the manager of the hotel since last summer.
10.Lily has sat there for several hours.
Chúc bạn học tốt ^^
