英语 根据句意及汉语提示写单词

英语 根据句意及汉语提示写单词
1.The _______(机长) asked all the passengers to keep calm.He was sure of saving them.
2.The knife is made of ___________ (钢).
3.--What can I do for you?
--I want a _________ (条) of chocolate.
4.The weather was bad,so the plane couldn't _________(登陆) at all.
5.--The manager ____________(出现) at the meeting yesterday.
--Really?When did he come back from America?