11. last sunday we(to go) to the theatre. 12. i(to meet) my friend yes- terday. 13. i(to write) a letter to my cousin yesterday 14. you(to write) a dictation tomorrow? 15. i(not to write) a report now 16. mother(to cook) a marvellous dinner yesterday. 17. tomorrow nick(not to go) to school. i(not to think) so.

11 went 12 met 13 wrought 14 will 15 am not(am't) 16 сооked 17 isn't am't

11went
12met
13wrote
14will you write?
15am not writing
16cooked
17won't go.don't think

Math is my favorite school subject. I started to like her from the very first grade. It gives me pleasure to solve examples and problems, as it is very interesting and helps me to learn more. All my acquaintances and friends call me a mathematician.

I really love math because it has many rules that are the same for all people. After all, it is customary all over the world to use the same rules and signs. It helps to bring people closer together.

All people need mathematics because we use it every day. For example, to buy food in a store. In many professions, mathematics is used on a daily basis, as they use a lot of mathematical calculations and problems. These professions are engineer, physicist, scientist, programmer and many others.

Also, mathematics laid the foundation for many sciences. Without it, there would be no such things as physics and chemistry. To get a job in any profession that is somehow related to mathematics, you need to know it well. Then it contributes to high career growth.

Also, math classes help in the development of logic. Good mathematicians are always good at chess, checkers, backgammon and other board games. Indeed, even in our daily life, it is very necessary to have a good ability to think logically and calculate all events in advance.

Math can also become your favorite hobby. There are many clubs and circles where you can solve complex math problems and examples, as well as meet different interesting people. And maybe you can find good friends with whom you will communicate a lot.

Mathematics moves our world far ahead and helps in the development of mankind. Mathematics is the future and progress for science and our entire

1. ..Has.she.ever lived in a foreign country? (live)

2. While we were watching... TV, the lights went out. (watch / go)

3. My mother .was sitting.. in the living room when someone broke... into our garage. (sit / break)

4. He ...has already arrived at the airport. (already arrive)

5. Someone .put.. poison into the glass while we ..were talking . in the kitchen. (put / talk)

6. I was listening to the radio when the fire broke out. (listen / break out)

7. Did...you ..play .tennis last weekend? (play)

8. I ..closed .the window because it started.. to rain. (close / start)

9. First she .cut.. the lawn and then she ..went. shopping. (cut / go)

10. He ..hasn't been. to school for a week. (not be)

11. She .was surfing.. while I ...was lying in the sun. (surf / lie)

12. In the middle of the night the phone .rang.. (ring)

13. I ..haven't met. her since her birthday. (not meet)

14. They came back yesterday at nine in the evening. (come)

15. I .was doing.. the housework when you .were.. at work. (do / be)