题目内容
17.Teenagers are notsupposed to smoke because smoking is bad for their health.分析 年轻人不应该抽烟因为吸烟有害于健康.
解答 答案:supposed.
结合句意是说吸烟有害,不应该吸烟,结合are和to用be supposed to表示应该做某事,故答案是supposed.
点评 be supposed to 表示"理应."强调客观上,"猜想会."常用于被动语态中
You are supposed to liten to your boss.
He is supposed to work hard.
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