Ha-yalda gvoha me’od.
what is the difference between די and מאוד?
The girl is very tall = הילדה גבוהה מאוד. The girl is pretty tall = הילדה היא די גבוהה. the word "מאוד" is "stronger" than די.
I tried הנערה and it was rejected :-(
Wouldn't "גבוהה מאוד" be more correct than "מאוד גבוהה"?
Not really, they mean the same and both are used.
can you say הילדה היא גבוהה מאוד?
You could say that, but the verb 'is' is rarely explicitly used in Hebrew (which is why Hebrew speakers sometimes have a hard time correctly using it in English and similar languages).