Множественная форма слов: a mouse, this, that.

hi!

i have got  your letter! i was glad to hear from you again! thankyou for your invitation. but i am compelled to upset you, i can't go with you to the concert because of my parents who are going  to the cinema at the same time and i have to stay with my little brother. next week i wiil be free and we will be able go to another concert. thanks for understanding!  

yours,

nina

my favorite weather is when it's sunny with clear sky and fresh, warm wind. i like when people are out of their apartments. when they're having picnics in parks. when children are playing hide-and-seek, running, building something out of sand. you walk out your house, you see this shiny and bright sun and it feels like you also become shiny and happy just like the sun. this kind of weather  is close to my personality. i like to wear light dresses, walk in the city with my friends when it's painted green. i think it is the most beautiful and wonderful kind of weather.