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Speaking reference notes: This topic is refereed from another speaking topic, developed by user: ftn
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Speakings by user Ekhlass1980
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- Q3 65
- Q3 85
- q5 85
- 6. Would you prefer to go on a trip overseas to a new country with a companion youknow, or just by yourself? 70
- Bioluminescence Bioluminescence occurs when organisms convert chemical energy into visible light. This happens when a chemical reaction involving oxygen and two other molecules takes place. During this reaction, light of varying colors may be emitted. The 80
25 in 30
Great!