he____(wear)a red jacket yesterday

问题描述:

he____(wear)a red jacket yesterday
he____(wear)a red jacket yesterdy
the classroom___(clean)every day
they___(know)each other since2009
anna is one of the best students in our class.you should____(向.学习)her

1. wore后面是yesterday 过去时的时间状语,所以填wear的过去时
2. is cleaned这里clean作为动词来用,every day 每天,用一般现在时就可以了 is ,然后又是被动语态,clean变成cleaned;(教室每天都被打扫干净.)
若把clean作为形容词来填,答案是 is clean (教室每天都是干净的.)
3. have known 这里since 作为现在完成时的典型时态词,肯定用have加完成时.又因为主语是they,所以不用变化,仍用have.
4. learn from这就是个固定的词组了.