Join the sentences using a relative pronoun and a relative clause. 1 That is the woman. She sold us her old car. That is the woman who sold us her old car. 2 This is the shop. I bought my clock herethisthe 3 My dad has a friend. He collects old radios. My 4 Is this the machine? It is used to play old records. 5 That is the film. I told you about it. 6 Where is the boy? I borrowed his book.

All our friends enjoyed themselves at his birthday party.

Polly and Nancy, help themselves to sweets and juice.

She got up, washed herself and left the house without disturbing anyone.

Relax yourself when you dance.

Who went with her?-Nobody. She went by herself

He feels not well today

We didn't know who that young guy was. He didn't introduce himself

I often speak to myself when I'm in bad mood and alone

Concentrate if you don't want to fail your exam.

I'm not angry with him. I'm angry with myself

They never think about other people. They only think about themself.

Global Warning! The Earth is heating up and most scientists believe that it's all our fault. When we burn fossil fuels, greenhouse gases such as carbon dioxide increase and surround the earth like a thick blanket. This traps heat and temperatures rise. Scientists say that in the next 100 years, average temperatures will rise by about 3°C. This doesn't sound like a lot, but it means BIG trouble! Ice is already melting, sea levels are rising and the climate is changing. How exactly is all this changing our world, and what will happen if we don't act in time? Cities under the sea According to recent climate reports, melting ice from the polar ice caps and mountain glaciers could cause sea levels to rise by about 1 metre by 2100. If this happens, whole countries such as the Maldives will vanish and millions in low- lying areas like parts of Bangladesh will lose their homes. Already, two small Pacific islands have disappeared under the waves. Coastal cities including Shanghai, Bangkok, New York and London will also be under threat. In Greenland, ice is melting three times faster than just a few years ago. If the ice sheets of Greenland and Antarctica ever melt completely, sea levels will rise about 60 m. That's enough to cover almost every major city on Earth!