根据汉语意思，完成下列句子：You had better _______ _________(放弃) smoking.
Mr. Lee is ill today, so I will give you the lesson ________ ______(代替)him.
The teacher was ________ ________(对、、、生气) him because he was late for school again.
Please wait a moment, the doctor is _______ _______（检查）the patients.
The baby is sleeping, please ______ ________(关小) the music!
作为青少年，我们应该学会照顾好自己．
As teenagers，we learn how to look after ourselves．（suppose）
每个人都会犯错误，但是吸取教训是非常重要的．
Everyone can make mistakes，but it is important （learn）．
他有时候很调皮，但是他从不顶撞他的老师．
Sometimes he is very naughty，but he never his teachers．（talk）
初中毕业后每个学生都有很多东西可以期待．
Each student can many things after they leave junior high school．（look）
A：Good morning，sir．（76）
B：I'd like to buy a shirt，please．
A：Oh，good! We've got lots of new shirts of different styles．This way，please．（77）
B：Let me have a look first．
A：This blue one is made of cotton（棉），and that green one is made of silk．Both of them feel soft and cool in summer．
B：The green one looks nice．（78）
A：Of course．Hmm，it fits you very well．
B：Thank you!（79）
A：＄78．
B：（80）
A：But it really looks beautiful on you．
B：That is true．OK．I'll take it．
A．Can I try it on？
B．Here is the money．
C．Which one do you like？
D．Where is the shirt？
E．What can I do for you？
F．How much is it？
G．That is a little bit expensive．