Ответ:

Task 1.

1. If I had known it was a secret, I wouldn't have told anyone.  (Conditional 3)

2. If I were you, I would stop smoking.  (Conditional 2)

3. If you put water in the freezer, it becomes ice.  (Conditional 0)

4. If they play well, they will win the match.  (Conditional 1)

5. If I earned more money, I would buy my parents a really big house! (Conditional 2)

Task 2.

1. Шлем  - Helmet;

2. Поход в кинотеатр  - Going to the cinema;

3. Перчатка  - Glove;

4. Бита  - Bat;

5. Метание копья - The javelin;

6. Купальник  - Swimming suit;

7. Прыжки в высоту  - High jump;

8. Коньки  - Skates;

9. Регби  - Rugger;

10. Гимнастика - Gymnastics (спорт).

Task 3.

1. Take off your jacket and put it in the washing machine.

2. Clara is very smart. I think she takes after her dad.

3. My new hobby takes up most of my free time.

4. Since you have so much time, why do not you take up (to) football.

Task 4.

1. The ball is in your court.  E. Начать какое либо дело.

2. Get off the hook.  A. Помочь кому-то. Вызволить.

3. Get the ball rolling.  E. Начать какое либо дело.

4. Saved by the bell.  D. Спасенный в последний момент.

5. Throw in the towel. B. Сдаться.