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julian cribb, author of the coming famine, says higher yielding crop varieties and more efficient farming methods will be crucial. so will waste reduction. cribb and other experts urge cities to reclaim nutrients and water from waste streams and preserve farmland.
poor countries, they say, can improve crop storage and packaging. and rich nations could cut back on resource-intensive foods like meat. in fact, wherever easy access to cheap food means people buy more than they consume, we could all start by shopping smarter ― and cleaning our plates.
밑줄친 부분.. 질문입니다.
앞에 문장은 can을 썼고뒤에 문장에는 can 의 과거형인 could를 썼네요 .. 그런데 뒷 문장에는 정확하게 명백한
과거부사가 나오는 단어가 없는데 왜 앞 문장과 시제 일치를 안 시켜줬고 could를 썼나요 ????
정확한 답변과 친절한 답변 부탁드립니다. ㅜㅠㅜㅠ