根据所给汉语和句子意思，用英语补全句子。Yellow is the color of the sun ,because it can (使我们想起) a sunny day .
He is hardworking ,he _____________________________(不介意为学生会做额外的工作)
It is silly of you ____________________________________(不原谅别人的错误)
Mr Wu spends a lot of time _______________________(解释东西给我们)
All the students are ________________________(做实验) in the laboratory now .
但是，说实在的，现在他已经有一段时间没玩了．
…but， be ， he has not played for a while now．
在扔掉废物前进行分类是必要的．
It's necessary to divide the waste into different kinds before we it ．
成功的关键在于从错误中学习，并且永不放弃．
The key to success is to learn from your mistakes and never ．
我们历史老师中等身高．他对我们很严格．
Our history teacher is of medium ．He is very with us．
坚持你的梦想，将来有一天，它可能会实现．
on to your dream；one day it may come ．