It and There.
13)__'s plenty of food for overyone.​

1. He was reading a book at five o'clock yesterday. 2. Will you go for a walk with me? — I am sorry, I can't. I am doing my homework. I haven’t written the English exercise yet. 3. Where do you usually take books for reading? 4. What was he doing when you saw him yesterday? 5. I have never heard of her. 6. This little boy has never seen a crocodile. 7. What are you reading now? — I am reading Tom's book. 8. Autumn has come. It is November now. It is getting colder, the days are getting shorter. It often rains. Soon it will be very cold. 9. Our students have done all kinds of exercises and now they are sure that they know this rule well. They hope they will make no mistakes in the paper.

Presentations are always great! I succeeded in being a participant of one of them. When a person is making presentation it is always interesting, this doesn't look like an ordinary lesson or hometask. While performing with a presentation, a person can reveal his unique level of creativity or can deepen in the task and recognize many new useful and amazing facts. This can make other people more interested in the topic and later continue it even at university. It can motivate everybody for detailed studying any question