We learnt recently,

이거 = this

그거 = that

저거 = that over there

Since 뭐 = what, can you tell

이거 뭐예요? = ______?

그거 뭐예요? = ______?

저거 뭐예요? = ______?

Solution:

그거 + 뭐 + 예요 = that + what + is = what's that?

We can make many sentences just like this. For example:

◎이거 책이에요.

◎저거 물이에요.

◎그거 카메라예요.

◎이거 커피예요.

◎그거 바나나 우유예요.

◎저거 오렌지예요.

◎이거 저예요.

Additional info:

-예요 is a casual and polite particle.

Its informal version is 야.

And its formal version is 입니까.

Therefore we get, 뭐예요, 뭐야 and 무엇입니까.

You should try translating these into english; test yourself :)

안녕♡