Đáp án:

1. Why don't we use energy-saving bulbs?

- What about using energy-saving bulbs?

- Let's use energy-saving bulbs?

- Shall we use energy-saving bulbs?

- I think we should use energy-saving bulbs.

- I suggest that we should use energy-saving bulbs.

2. Why don't we go to work by public transport?

- How about going to work by public transport?

- Let's go to work by public transport?

- Shall we go to work by public transport?

- I think we should go to work by public transport.

- I suggest that we should go to work by public transport?

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Dùng những ctruc này để khuyên ai nên làm gì:

1) S + suggest/suggested + V_ing + O/ that + S + should + V + O.

2) Why don't we + V + O?

3) Let's + V_inf + O.

4) Would you like + to_V + O?

5) S1 + think(s) + S2 + should + V(bare) + O.

Chúc bạn học tốt!

Đưa ra ý kiến, đề nghị:

Why don't we / you + V1? 

= Let's + V1.

= What about / How about + Ving?

= Shall + S + V1?

= S + think(s) + S +should  + V1 

= S + suggest + Ving 

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1.

- What about using energy-saving bulbs?

- Let's use energy-saving bulbs.

- Shall we use energy-saving bulbs?

- I think we should use energy-saving bulbs.

- I suggest using energy-saving bulbs.

2.

- How about going to work by public transport?

- Let's go to work by public transport.

- Shall we go to work by public transport?

- I think we go to work by public transport.

- I suggest going to work by public transport.

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