IV. Complete the sentences, beginning as shown, so that the meaning stays the same.

1. Peter's mother accused him of having eaten all the ice-cream.

2. Daniel had said he had seen the jewels but denied having stolen them.

3. Neil regrets having sold the car.

4. Having checked that she had her keys, she left the house.

5. When I arrived there, Jack had left the office.

V. Give the English words and Vietnamese meaning to each of the following transcription.

1. emission: sự bốc hơi, tỏa khí

2. infectious: lây nhiễm

3. ecological: sinh thái

4. environmentalist: nhà môi trường học

5. extinction: sự tuyệt chủng

6. numerous: nhiều

7. disrupt: phá vỡ

8. capture: sự bắt giữ 

9. absorb: hấp thụ

10. famine: nạn đói