3. Speak

a)

A. I think we should turn off the faucet. I suggest fixing the faucet.

B. I suggest turn off the electric oven/ cooker. I suggest repairing the cooker. It may be broken.

C. Why don't we switch off the fan? Shall we have an electrician mend the fan?

D. I think we should turn off the air conditioner.

E. Let's switch off the lights and the TV.

F. I suggest fixing the faucet in the bathroom.

G. I think we should use bikes instead of motorbikes.

H. Why don't we use the public buses?

b)

E: I think we should use energy-saving light bulbs for ordinary bulbs.

F: That's a good idea.

G: How about turning off the lights and other electric tools when we don't use them?

H: OK. Let's do it.

1.
Good morning, everyone, I'm (tên).

Today I'm going to tell you how to reduce garbage. As we know, in our modern life, most of us produce too much garbage everyday. You can reduce this amount by: 
- collecting plastic bags
- not keeping solid waste with food waste 
- putting different kinds of waste in different places

If you follow these simple rules, not only will you reduce garbage, but also keep the environment cleaner
2.
Good afternoon, everyone!

Today I'm going to tell you how to reusing paper, especially for students. As we know, in our modern life, most of us waste too much paper everyday. You can reduce this amount by: 
- having a separate wastebasket for wastepaper 
- keeping sheets with single printed page for drafting

If you follow these simple rules, not only will you reuse paper, but also you will save money 
3.

Good morning, my friends!

Today I'm going to tell you how to save energy, especially in our kitchen. As we know, in our modern life, the kitchen is a place where we use much of the energy such as electricity, gas, and water. To reduce this amount of this energy, we should:

- turn off the lights, fans, and faucets when not necessary.

- get all the food ready before turning on the stoves.

- keep refrigerator door closed.

- check the water pipes regularly.

If you follow these simple rules, not only will you save energy, save money, but also your appliances can work effectively

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