3)我对他很生气,因为他让我等了那么久.用英语怎么说?
I was very angry with him because he kept me wating for him so long.
(4)王老师被认为是这个学校最受欢迎的教师.用英语怎么说?
Mr Wang is regarded as the most popular teacher in this school.
(5)当你处于危险中时,你应该尽量保持冷静.用英语怎么说?
When you are in dangerm, you should try to keep calm.