7. The _________ of Da Lat is much higher than Ho Chi Minh ( humid )
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The Science of Taste There’s more to enjoying food than simply eating it. We (1)__________ think that eating food is all that’s (2)__________ in discovering its taste. However, research tells us that other things also have a big (3)__________ on whether or not we enjoy a meal. This is the reason why good chefs pay so much (4)__________ to the appearance of dishes, cafés use the smell of coffee to (5)__________ in customers, and owners spend money on restaurant design. When we see and smell food, information is sent to our brains about the flavours to (6)__________, and the taste we experience comes (7)__________ from this. Experiments were (8)__________ out using bowls of peas, one with green food colour added, and one without. People ate from each bowl, and (9)__________ the flavour of the peas in both bowls being the same, the greener peas were described as tasting fresher by every (10)__________ person.
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The increased loss of the ecosystems (23) ________ wetlands, wildlife, rainforests, coral reefs, aquatic life forms, and grasslands are highly influenced by overpopulation. It is out of overpopulation that activities (24) ________as excessive agriculture, environmental pollution, and extensive land development have become more and more intensive. For example, rainforests originally covered 14% of the entire earth's surface. Today, rainforest only cover about 6% of the earth's surface and scientists' project it may even become (25) ___in the next four decades judged by the current rate of vegetation removal, logging, and deforestation. Besides, due to environmental pollution, 30% of the ocean reefs have been lost because of acidification and global warming (26) ___1980. Also, (27) ___half of the original wetlands have been lost.
23. A. include B. including C. includes D. included
24. A. like B.such C. so D. many
25. A. more B. most C. less D. lest
26. A. in B.for C. about D. since
27. A. more than B. more C. as D. so

Although its________ in April 1981 was beset with delays, the space shuttle Columbia returned triumphantly two days later from its mission in the Earth’s orbit.
A. staff B. rescue C. funding D. launching
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