When do you need and not need 个人 and when do you not?
I think 'ge' is equal to indefinite article in English
How do you know when to use 这是 and when to use 这个?
个 is a mesure word , so we can't say 这个 for a person , so we say 这是 ,that's what i got from duolingo tips , idk if it's wrong ...
In the tips, it said 个 must be used with 这, right?
Why can't I say 那是...?
那 means "that". 这 means "this".
I think na is that
I thoughr Dr Li is supposed to be a singular/specific subject. Shouldnt "zhe ge" be more appropriate? Or am i understanding this on the wrong side. Shenmee!!?
I dont have i of word Li...so I cant do it well