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In the future, we might have robots helpers

I don't feel very well today

47. They still burn rubbish. They know burning rubbish causes terrible pollution. (HOWEVER)

→ .They know burning rubbish causes terrible pollution. However, they still burn rubbish (HOWEVER)

48. We were late for our class. There was a lot of traffic on the road. (SO)

→ .There was a lot of traffic on the road, so we were late for our class

C. Use the given words or phrases to make complete sentences.

49. Andy/ I/ take part/ the clean-up day/last Saturday/. 

→  Andy and I took part in the clean-up day last Saturday

50. I think/ it/ great idea/ build/ birdhouse/ our garden/.

→  I think it is a great idea to build a birdhouse in our garden

43. Let’s walk or ride to school because it’s good for our health and the environment. 

→ How about .walking or riding to school because it’s good for our health and the environment. 

44. My parents intend to organize a skiing holiday for us over Christmas.

→ We are going to organize a skiing holiday for us over Christmas.

45. The whale-watching trip was tiring. However, I enjoyed every minute of it.

→ Although the whale-watching trip was tiring, I enjoyed every minute of it.

B. Combine each pair of sentences using the word in brackets.

46. We learn a lot about recycling at school. Lots of people don’t really do much about it. (ALTHOUGH)

→ .Although we learn a lot about recycling at school, lots of people don’t really do much about it.

We'll be by the sea this weekend

My family will play sports on the beach

When was her last birthday party?