Собъяснением. 1. match the sentences (a-c) with the rules (1-3) a. the students' exam are good b. in karen and andy's opinion, tablets are a good idea. c. for the school's head teacher, technology is important. 1. after singular names or nouns, we add's 2. after plural nouns ending in s, we just add an apostrophe ('). 3. after more than one name, the's goes after the second name.

Dear Alex,
Thanks for your last letter. I'm sorry I haven't answered earlier but I was really busy with my school. As you know my native county is Russia. My home city is Moscow. Moscow is the heart of our country. People in my city are helpful and friendly. There are a lot of places of interest in Moscow. It is a very modern and civilized city. There are also many cars , tall buildings, shopping centeres in Moscow. My town is very beautiful and it is comfortable to live here. I invite you to visit my home town ! I am sure , you will get unforgettable impressions! Alex,and what about you ? Write me about your town (city ). I've got to go now because my dad asked me to help him in the garage.
Write back soon!
Best wishes,
Mark

Dear Alex,
Thanks for your last letter. I'm sorry I haven't answered earlier but I was really busy with my school. As you know my native county is Russia. My home city is Moscow. Moscow is the heart of our country. People in my city are helpful and friendly. There are a lot of places of interest in Moscow. It is a very modern and civilized city. There are also many cars , tall buildings, shopping centeres in Moscow. My town is very beautiful and it is comfortable to live here. I invite you to visit my home town ! I am sure , you will get unforgettable impressions! Alex,and what about you ? Write me about your town (city). I've got to go now because my dad asked me to help him in the garage.
Write back soon!
Best wishes,
Mark