Mosquito-borne diseases kill 750,000 annually. Could climate change make it worse?
Addicted to war
Ice and the origins of life on Earth
Ecotourism: good or bad?
Modals of deduction and speculation
Phrasals
Quantifiers
First and zero conditional
Present perfect continuous
Food shortages
Can climate change cause more disease?
Recording should be less than 60 seconds
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