Lesson number 28

Wednesday, 9th January 2008

Summary:

• Present perfect vs. simple past.

Exercise 3

a). 1- They/live/in Moscow/eight yeares.

-->They have lived in Moscow for eight yeares.

2-He/know/Paul/a long time.

-->he has know Paul for a long time.

3-I/work/ for UNICEF/1998

-->I have worked for UNICEF since 1998.

4-He/be/in hospital/six days.

-->He has been in hospital for six days.

5-She/have/a car/February.

-->She has had a car since February.

b). 1-How long have they lived in Moscow?

2-How long has he know Paul?

3-How long have I worked for UNICEF?

4-How long has been in hospital?

5-How long has she had a car?

Present Perfect vs. Simple Past

-->Present Perfect:

->The actions are unfinished or they have just finished at the moment;

->Time adverbs often used: For, Since, Just, Yet, Never, Ever.

--> Simple Past

->The actions are finished abd complete;

->Time adverbs often used: yesterday, last, ago, ...