。 You are students.你们（现在）是学生。 You were students.你们（过去）是学生。 am， is →was are →were述句：He was at home yesterday.否定句：He wasn’t at home yesterday.疑问句：Was he at home yesterday? Yes, he was. /No, he wasn’t. am， is →was are →were述句：You were a student last year.否定句：You weren’t a student last year. 疑问句：Were you a student last year? Yes, I was. /No, I wasn’t.weren’t = were notam ,is → was are → wereA: How was your school trip？B: It was great.A: How was your school trip?B: It was not bad.A: How was your school trip?B: It was terrible.述句：主语+动词过去式+其它实意动词的一般过去时go for a walk 散步went for a walk→She went for a walk.(她去散了步。)milk a cow挤牛奶→milked a cowS |
