Natural, finely tuned patterns of human reproduction have ______ by settled agriculture and urban living.
举一反三
- For traditional agriculture, urban agriculture is a(n) ________.
- We have to understand the new relationship between human civilization and the earth’s natural balance.
- Used to rural life, my parents have trouble _____ to living in the urban area. A: adjusting B: adjusted C: to adjust D: adjust
- What dilemma do many young people have to face? A: High cost of living. B: Overcrowding anywhere. C: Pollution of living surroundings. D: Choices of staying.
- No sooner ________ themselves in their seats in the theatre ________ the curtain went up. A: they have settled; before B: had they settled; than C: have they settled; when D: they had settled; than