Упражнение 7 :
1. can (означает физическую способность брата плавать)
2. must ( строгое долженствование, иначе не видать хороших оценок в учебе)
3. could (прошедшее время от глагола can, т.к. предложение в прошедшем времени)
4. may (означает разрешение, позволение что-либо сделать)
One morning two young men made up their minds to climd up on the top of the mountain. It was a very sunny day and they thought that it could be a very good day for their walk. They took ropes, climbing equipment and strong shoes. They began their climbing at one o'clock afternoon and finished it by 5 o'clock p.m. Guys made a lot of photos. But subddenly the weather took a turn for the worse. It began to snow. Then they understood they should have to climb down. It was very difficult. Gues couldn't see anything, cause it was snowing. They stoped and put up a tent. They waited for many houres. It got very cold. After a while they saw a helicoper in the sky. Guys understood that it was their rescure. They were saved.
Dear friend,
Thanks for your invitation! It sounds great, I will go with you there. I've never been to Scotland so I want to see its beautiful landscapes. I have few questions considering our trip. Can you book outbound tickets for us? Where will we live? I may book hostel if you don't mind.
Looking forward to seeing you soon!
Love,
Your friend
Tom doesn't write with the pen.