随堂演练及时体验 巩固提升 Ⅰ.单句语法填空(不多于3个单词) 1.- Bob, are you free at the moment? I have to ask you some questions.21教育网 - Yes, go ________. 答案与解析 ahead go ahead可用于鼓励对方继续说下去,意为"可以;往下说吧。" 2.The majority of doctors believe smoking is ________ (harm) to health.版权所有 答案与解析 harmful 句意:大多数医生认为吸烟有害健康。harmful"有害的"。 3.At times this balance of nature ________ (disturb), resulting in a n..