哪个高手帮我解决一下几个英文题目:要快点啊!!!1、All the students in Class 3 listen to the teacher c_____ in class.2/People ofen make t______ calls to each other.3、I take my hat off to you on this中的“take my hat off to ”是什么意思好了,就这么三个问题。帮帮忙吧。