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.

How one and one's is different from other indefinite pronouns the possessive of one (one's) is formed the same way as the possessive of other indefinite pronouns, such as someone (someone's), but it is … You typically wouldn't use either phrase for meetings. 'one-to-one' is rare and often technical in any case, you might say, 'on most websites there is a one-to-one relationship between a username and …