I think the biggest threat to people and life on Earth in general nowadays is global warming. Doubtless, when we burn petrol, oil and coal, lots of carbon dioxide is added to the atmosphere that upsets the Earth's heat balance. If we keep emitting current greenhouse gas, climate change will cause about a third of the planet's animals and plants to face extinction by the middle of the century.
2. was cleaning while he worked in the garden.
3. when we found the cat it was playing...
4. Joan was having a shower when the window cleaner came.
5. was kniting/ smoked
6. arrived/ was painting
7. were walking/ started
8. you were talking about/ came
9. was reading/ knocked
10. was washing/ cut
11. broke/ dusting
12. was building/swam
<span>1) It rains every day this autumn.
2) It often rained last autumn, too.
3) Do you like it when it snows?
4) Does it snow in Africa?
5) It is raining now.
6) Last winter it often snowed.</span>
<span>Nowdays it is really hard to keep your health in a good shape.The problem is that our environment becomes more and more worser every single day.But as for me I try to keep my healf in a good shape and take care of it.For example every morning and evening I brush my teeth.I try to eat healthy food such as vegetables, fruits and cereal.Also I like to spend a few ours in the open air,somewhere in the forest to give my luns a little bit of a fresh air.But you shouldn't forget about other people health and you should not leave any trash in the public places-clean after you.</span>
The most expensive,the biggest,the tallest,the ugliest ,the most unusual