Please teach me! "There is no end of learning" "There is no end in learning There is no end on learning which one is correct, why?

PLEASE CORRECT During my master's degree, I have worked as a assistant for circuit course assistant for about two years. I cherish this opportunity very much. In order to explain the knowledge points in the most popular language and Help students think in different directions, I have referred to various of versions of the textbooks. For instance, I used to explain Power in this way: When we go to the swimming pool, we need to pay entrance fee and deposit. The entrance fee is consumed, just like Active Power. In contrast, deposit will be returned after the end of swimming as same of reactive power. And the then the total amount we pay is the right Power. Throughout the process, I not only successfully completed my work, but also organized and deepened my knowledge.

A werid thing  I contact someone on italki before, and todday I can't find his profil, it shows " Sorry, this profile has been removed or deactivated"it shows " . It's so werid, does it happen frequently?

Writing Practice 1- User experience on italki I just start to use italki for a week, but I use it very frequently to figure out its function. I have posted some essay on my notebook and I can receive one or two comment every time, which is very thankful. And I also enjoy revising others essays but sometimes it's a liitle hard to understand accurately and I am afraid my mis-understand will misleading someone. I think those functions are very useful for who is able to express his meaning and want to modify some grammar problems or express them more flently.

Looking for English or Korean partner~ I am looking for someone who can practice English or korean with me. We can talk via italki first to see if we can hit it off. My English is good enough for daily conversation, and my korean is baby level.

Share-a little poetry 断章 卞之琳 站在桥上看风景 看风景的人在楼上看你 明月装饰了你的窗子 你装饰了别人的梦 You are standing on the bridge and watching scenery the person who is watching scenery upstairs is watching you moon decorate your window you decorate others dream

Writing Practice-About friendship I have many friends, but I don't have many best friends. I think that best friend is very pricious and needs our effort to maintain it. So we dont have enough time to maintain our normal friendship with other normal friends. The best friend can help us when we are in trouble or we are annoying. They can understand our filing and accompany us through diffculites. But there are some times I think I need more friends. There are some tablegames that needs enough person to play, and I only like to play with my best friends which makes me hard to have enough players to begin a tablegames. Would you please help me to distinguish "people" and "person"

Writing practise- Johnny English I watch a movie today, called "Johnny English". It is very funny and there are some times I just can't stop laughing. But When I am writing this essay, I find that it's very difficult to describe a scene. When reading a English arctile, I notice that it's very normal to use many adjective in one sentences, which it's very hard to understand and translate. Back to Johnny English, my most impressed scene is which Johnny wears armor and slip from the stairs, when he is slipping out of the door he catch the wood beside the door and close the door coincidentally. The whole actions are so fluid and funny. Please help me to distinguish "film" and "movie". If you can understand my description, please re-write it in a smooth way. Thank you~~

Please explain the usage of virtual tense for me.虚拟时态 The only example I know is "If I were you". Is there other situation we need to use virtual tense?