提环保建议的情态动词 — 英语选择题
题目
环保小组想提出两条建议：重复使用纸张；离开教室时关灯。哪一项恰当地表达了这两条建议？A. We should throw paper away, and we shouldn't turn off the lights. B. We shouldn't reuse paper, and we should leave the lights on. C. We should reuse paper, and we shouldn't leave the lights on. D. We must reuse paper, and we must turn off the lights.