吃透英语课本，提升在校竞争力
v. 是；存在；成为；“be”的过去式
I was sad because I was ill.
我很难过，因为我病了。
Ed was worried because there was ice on the road.
爱德很担心，因为路上有冰。
Our room was big but everything was very old.
我们的房间很大，但所有的东西都很旧。
When Isaac Newton was a child, he was very quiet.
当艾萨克·牛顿还是个孩子的时候，他很安静。
I was so proud.
我很自豪。
A girl was ill.
一个女孩病了。
