check grammer (urgent)

1. did you have lunch?
we have just finished our lunch at McDonnald in Causeway Bay.
3. Where will you go after our meeting?
i will go shopping at Mongkok and then go home.
4. Where do you live.
i live in Causeway Bay.

1. ((Where)) did you have ((your)) lunch?
((We had it in the McDonalds' at Causeway Bay.))
3.
((I will go to Mongkok for shopping and then back home.))

1. Did you have lunch?
We just finished out lunch at McDonald's in Causeway Bay.
2. Where will you go after our meeting?
I will go shopping (行街?) in Mongkok and then go back home.
3. Where do you live?
I live in Causeway Bay.

1. did you have the(YOU CAN TO DELETE [the]) lunch?
we(you?)THE QUESTION WORD!!! just finished our lunch in McDonnald at Causeway Bay.
3. Where will you go after our meeting?
i will go to the shipping(SHIPPING?I THINK YOU MAY TALK[SHOPPING]) in Mongkok and then come back in the home.(Mongkok .Then go back to home)
4. Where do you live.(?)
i live in Causeway Bay.