be seen to do

来源:百度知道 编辑:UC知道 时间:2024/06/04 16:36:27
讲解一下,附例句
seen 是see 的过去时,这里不是seem的误写
A bird was seen________into the classroom yesterday.
A.flew B.to fly C.fly D.was flying
答案是B说一下为什么呢?

be seen to do 是被看见要做什么
1.I do not care to be seen in his company.
我不愿意让人看见同他在一起。

2.Whether it will do us good remains to be seen.
这对我们是否有好处,还要看一看。

3.He swore to having seen the man do it.
他肯定地说看见这人做过这事。

4.They were afraid to be seen speaking to me.
他们都怕人们看到他们和我讲话。