Поставь глагол в правильную форму (present simple / continuos)

if you..... (eat) porridge, you..... (be) heatly

when i..... (be) in london, i.... (send) you a postcard.

i.... (invite) her to my birthday party when i.... (see) her at school.

hello, hellen!

it was so nice finally to hear from you! i was really glad that you have had a great time in spain with your parents.  and of course i was very upset that we have not met in london. 

if you want to know about my trip with my family, i can say that we had a lot of fun.  you know how much we like to travel, it is a great opportunaty to see beautifull and interesting places and to meet knew people.  most of all we like to travel in summer time, it is always warm and pleasent weather, you can go to the seaside and sunbath and swim all day long.  but, considering, that now is a winter time, we have decided to change a sea to a sightseeing. we have visited  warsaw, prague, berlin. we have seen many interesting and historical places over there. unfortunatly, i did not have much time for shopping and  you know that my mother is not a big fan of it.

well, i have to say good-bye now, but i also hope we will meet in the nearest future!

take care! bye!