could you please tell me the difference between expand and enlarge? 当这两个单词表示扩大的意思时，有什么区别?请帮一下忙，谢谢！thank you!

Is it right that seelp late while get up early? One month ago,I came to my college life.However,the college life didn't like what I thought.I join an organization which is encourage students get up early in order to practice spoken English.However,my roommates play phone games until midnight,I can't fall asleep,the next day,I have to get up with black rim of eye.what should I do? 请帮忙指出作文里的错误之处，谢谢！

In English Class Today we had an English lesson.In the class,I asked my teacher a question. In my homework,there is a choice question，I did wrong,IchoseD，I didn't understand the right answerB.However,my teacher told me, bothBandD were right.I didn't agree with him,so I put the problem to the Internet. 请帮忙指出日记里的错误，谢谢。[emoji][emoji]

the two sentences ,which one is right? why? thank you. we want to find out what the taxes are. we want to find out the taxes. it would be better if you can tell me how to use"find out"