Which one is grammatically correct or better? I have two assignments, One of them is done. I have two assignments, One of which is done.

Understanding the Context

I watched a video tutorial that the teacher said the ... 0 The phrase 'one of the' is used to describe something/someone from the same group. There are many birds on the tree. One of the birds is red.

Key Insights

This means we are talking about all the birds on the three but then when you want to be specific about the red bird, you use one of the. He is one of the soldiers who fights for their country - is correct. your /yʊr, yɔr, unstressed yɚ/ pron. the form of the pronoun youthat is used to mean possessed or owned by you; of or relating to you; belonging to you, and is used before a noun: I like your idea. The library is on your left.

Final Thoughts

(used to indicate all members of a group, occupation, etc., or things in a general way): some, any, or one: It's just your average weekday. One-to-one is used when you talk about transfer or communications. You may use one-to-one when you can identify a source and a destination. For eg., a one-to-one email is one sent from a single person to another, i.e., no ccs or bccs. In maths, a one-to-one mapping maps one element of a set to a unique element in a target set. One-on-one is the correct adjective in your example.

See Free ... pronouns - "One of them" vs. "One of which" - English Language Learners ... Is the use of "one of the" correct in the following context?