I have homework

1.I have owned three toy shops since 1986.
2.We have learnt cooking for 6 years.
3.They have kept the dog since 2004.
4.He has joined the Art Club since last October.
5.I have been a policeman for 15 years.

Jacky has owned a toy shop since 1986.
Mary has learnt cooking for 6 years.
Brian has kept a dog since 2004.
Mandy has joined the Art Club since last October.
Kenny has been a policeman for 15 years.

1.He has owned a toy shop since 1986.

2.She has learned cooking for 6 years.

3.I have kept a dog since 2004.

4.We have joined the Art Club since last October.

5.He has been a policeman for 15 years.

1. May owned a toy shop since 1986
2. I have learnt cooking for 6 years
3. Nancy has kept a dog since 2004
4. Karen has join the Art Club since last October
5. John has been a policeman for 15 years

2007-05-16 16:20:43 補充：
1. May has owned a toy shop since 1986

2007-05-17 15:24:30 補充：
We should use present perfect tense when you see words like for/since etc. thet means you should use had/ has with the past participle of a verb.

1 I own a toy shop since 1989
2 Ihave leran cooking for 6years
3 I keep a dog in 2004
4 I have join the Art Club since last October
5 I have be a policeman for 15 years