Question

You look very ________. Have you lost your weight? ( Slim) degree of adjective​

Answer 1

$\huge \bold \blue{answer}$

You are looking very slim.

Here, the person(you) isn't compared with anyone, hence we used the positive degree of comparison.

Answer 2

$\large\underline\mathbb{Answer:}$

You look very slim.Have you lost your weight?

__________________________

$\large\underline\mathbb{Explanation:}$

Here we use slim and not slimmer or slimmest.

__________________________

We would use slimmer if it is compared with another. The clue is to look for 'than'

For example:

This pencil is slimmer than Mina's pencil.

__________________________

Similarly, we would use slimmest when it is considered the most. The clue here is to look for 'The'

For example:

This pencil is the slimmest in my whole class.

Hope this Helps:)