1. If we use energy-saving bulbs, we (save)……will save………….. a lot of money.

2. Don’t speak so (quick)…quickly……………..because I can’t understand you.

3. If you do more exercise, you will be healthy and strong.

4. She always turns off her mobile phone before (go)…going………….to bed.

5. Another (harm)………harmful……….. gas is called methane.

1. If we use energy-saving bulbs, we (save)………will save……….. a lot of money.( câu đk loại 1)

2. Don’t speak so (quick)………quickly………..because I can’t understand you.( sau động từ speak dùng adv)

4. She always turns off her mobile phone before (go)……going……….to bed.( sau giới từ before + Ving)

5. Another (harm)………harmful……….. gas is called methane.( trước danh từ gas dùng tính từ)