老师给了个关于 be surprised at 的例子：I am surprised at the news surprised不是过去式的词吗?怎么be动词还用am

老师给了个关于 be surprised at 的例子：I am surprised at the news surprised不是过去式的词吗?怎么be动词还用am be surprised （高二英语）关于 be surprised by...1 Other scientists were surprised by her discovery and called it a success.be surprised by 是个固定搭配吗?2 “短文”用英语怎么说呢?是paragraph be surprised by,be surprised with,be surprised at区别 be surprised to sb? be surprised that 造句 be surprised to do be surprised to do be surprised at be surprised 怎么用? plan to be surprised. 关于感恩老师的作文,给个提纲谢谢. 谁有关于老师的好词好句好段啊要写老师,白发的.勤劳的.顺便在给个题目 be surprised at.造句I am surprised at his has done .我对他的做法很惊讶.请老师帮我指正, be surprised by和be surprised at的区别 be surprised at与be surprised to的区别 be surprised at sth.和be surprised to do sth. be surprised at 与 be surprised to 有什么区别