last year my English class was difficult.此句的class为什么不用复数形式

I must improve my English this year.(用last year改写） I_____ _____improve my English last year. Last year my English class was difficult什么意思 last year my English class was difficult翻译为汉语 Last year,I did not like my English class My brother?last year My mother _____about my English last year. A.worry B.worries C.worryed D. worried last year my English class was difficult.此句的class为什么不用复数形式 My English class wsa difficult last year改成一般疑问句请问怎么改?钱太少,不好意思, My sister______(study)English every day last year.中的study 为什么填studied而不是was studying 正确动词填空My friend,Carol,()(study)for the math test and ()(practise)English last year Ti is my last year!in my life last year my brother_____(jump) last year My family holiday last year my last year 英语作文 英语作文My last year They____ ____ ____speaking English last year【英文翻译】 they studied english last year改为一般现在时 Who__________(teach)you English last year?