Complete the dialogues with the correct perfect form of the verbs in brackets. Jo: You (1) (be) on holiday- your face is tanned!

Ben: You're right! I (2) (ski) in Switzerland with Ron and Tommy. We got back last night.

Jo: (you/ see) Mark yet?

Ben: No, I (4) (not/have) time. But he (5) (be) busy training for the swimming competition next weekend. I imagine he's in the pool now.

Jo: I know. I saw him yesterday morning. He(6) (train) for two hours before school! He looked terrible!

Ben: When I left for Switzerland last week, they (7) (not / choose) the team for the competition but Mark texted me during the week to tell me the news.

Jo: Yes - he (8) (look) forward to it. Let's go and watch him together.​

You shouldn’tdo it today.

Тебе не следует делать это сегодня.

How shouldhe solve this problem?

Как это он решит проблему?

You shouldcall the doctor if you don’t feel better.

Тебе следует позвонить врачу, если ты не почувствуешь себя лучше.

Bob shouldhave boughtroses for his wife’s birthday.

Бобу следовало бы купить розы на день рождения своей жены.

The childshouldn’thave playedcomputer games all day long.

Ребёнку не следовало бы играть в компьютерные игры весь ден

You should spend more time with the kids. – Тебе следует больше времени проводить с детьми.
How should they be so rude? – Как они могут быть такими грубыми?
Why should you ask me about this again? – Почему это ты снова меня об этом спрашиваешь?

In recent years the number of environmental problems has increased greatly. One of the most dangerous problems for our planet is global warming which means that most climates all over the world are changing and getting warmer. It happens because we burn too much petrol resources, such as oil and coal, and the Earth heats up. This process can cause melting of the polar ice and the sea level rising in the future. If the climate changes there will be floods, heavy storms or severe droughts in different areas of the world.We should start recycling things made of glass, paper, plastic and aluminium. We should stop smoking and plant as many trees as we can because they can give us more oxygen. We need to drive less and use public transport in order to reduce fuel burning. We are responsible for the situation.