5. Complete the sentences with the derivatives of the words: 1) Yesterday I saw a very ... (usual) flower.
2) The number of (home) people in many countries is getting more and
more every year.
3) I felt a great ... (comfort) because of his behaviour.
4) The scientists discussed the new ... (develop) of this idea.
5) The bank of the river was ...(sand).​

who-кто, который; whom-кому

1. A check is a written order to a bank to pay a certain amount of  money to the person or business to whom the check is  made.

2. This is the executive to whom the expert explained how to  accomplish the task.

3. It would also include individuals in junior managerial or professional jobs, many of who could expect to earn  considerably more as their career progressed.

4. If you know that your grandmother, who loves rye bread,  is coming to visit you, you might want to get some for her.

5. The customers who buy this “loss leader” can decide to  buy a few other things they need.

Dear Steve,

I was very glad to hear from you again. I haven't written for ages because of my school activities.

In your letter you ask me to tell you about my favorite kind of sports. With a pleasure. I like many kinds of sports but best of all I like football. It's the game of my dream. I play for my school football club "Shkolnik". We are good players and we win almost every competitions.
Besides it I'm a football fan and I like to watch every match on TV or in the stadium. And what about you? Tell me about your favorite kind of sports. That's for me today. I have to go.

Best regards to your family.
Write soon.