Bonjour,

Réponse :

They are interested in science.

to be interested in = être intéressé par

Do you care about the environment?

to care about = se soucier de

She is keen on science.

to be keen on ( something )= être passionné par ( quelque chose )

He is really into motor sports.

to be into = être fan de, aimer

He has never come up with any brilliant idea, has he?

to come up with ( something ) = proposer ( quelque chose )

She is passionate about cosmetology.

to be passionate about ( something ) = être passionné par (quelque chose )

His work has to do with neurosciences

to have to do with = avoir rapport avec