announce prize twinkle 一般过去时 that,if, whether引导的宾语从句 时间状语从句

helpful knowledgeable she very not only…but (also)… 形容词作表语 并列连词 一般现在时 主系表

me nervous say(said said) teacher to what 一般过去时 固定句型 连接代词和连接副词引导的宾语从句

ill late meeting 一般过去时 that, whether, as, as if, as though, because引导的表语从句

suddenly walk fall down in the street 一般过去时 固定句型