摘要: [2010·山西康杰中学5月模拟]He must be helping the old man to water the flowers, ? A. is he B. isn’t he C. must he D. mustn’t he 11B考查反义疑问句的构成.前文为肯定含义.后文用否定形式,根据前文的谓语动词形式可知用isn’t.

网址:http://m.1010jiajiao.com/timu3_id_2557024[举报]

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网