"This is Doctor Li."

Translation: 这是李医生。

[Emily199875]

When do you need and not need 个人 and when do you not?

[StankinJankin]

In the tips, it said 个 must be used with 这, right?

[ArynLong]

Why can't I say 那是...?

[rreestopher]

I think na is that

[GoldenSeokjin]

那 means "that".
这 means "this".

[EIQa8]

那是 = there

[Nagtatago]

there's no pinyin for the answers and I can't even replay the audio for the answer's characters

[PabloChain]

I dont have i of word Li...so I cant do it well

[Kieran209788]

Why is there no need for the verb “是” in this sentence?