Question

She will be
good in study
stüdy. (make it simple present)​

Answer 1

Answer:

She is good in studies.

Explanation:

First of all, we always write studies, not study in such sentences.

The question is in simple future tense. To make it to simple present, we will write it as if it is happening right now. Hence,

She is good in studies.

Answer 2

Answer:

She is good in study

Explanation:

Hope it helps!!