IV. Rewrite the sentences, using the words in brackets: 1. I'm sure it's a crocodile (must).
2. It's possible you have left your bag in the car (could).
3. I'm sure Mike didn't do it (can't).
4. She speaks foreign languges so well. Perhaps, she travels a lot (mihgt).
5. You have been working all the day. I think you are tired (must).
6. The puppy looks so helpless. I think he has lost his family (could).

(адрес справа в верхнем углу)
46 Riverview Park
New York 542210USA
15th March, 2016

Dear John,
How are you? Everything is fine with me I haven't written for a while but I've been realy busy! Are you preparing for Christmas? Have you already bought gifts for your family? What about me I recently went shopping. It takes me a lot of time. I bought a T-shirt for my brother and a vase for my mother because her last vase was broken by cat. I have no idea what can I to present to my father. A seller advised to buy a cap, but I not sure about it. Also I bought smth to you. If you haven't bought presents and don't know what to buy we'll go shopping together.
Take care of yourself.
Best wishes,
Nick.

Moscow, russia 26/04/2017 dear sergei, thank you for your letter. it was very interesting to know all your news. sorry that i have not been writing for so long time but i really was extremely busy. in last letter you asked me about my past time. in my past time my favorite things are listening to music, going for a walk with my friends, going to cinema with parents or doing sports. when the weary her is fine i usually spend my free time outdoors. i play with my dogs, running in the park and walking with my friends. when the weather is not fine or when it is really awful i read at home, make friendship bracelets and draw. what do you usually do in your free time? what are your hobbies ? do you like dancing? write me back as soon as possible. with love, имя)