They were an attentive audience.
She was attentive, as I explained the theory of quantum mechanics.
the kids were very attentive to the little boy and his friend.
She's a good salesperson because she's attentive, helpful and courteous to all who enter the store.
I am not writing a sentence using that word.
I can give you a sentence using the word galaxy.
a sentence using the word endotracheal
This is a sentence using the word aviator.
I am saying a sentence using the word collagen.
This is a sentence using the word monomer. :P
this is a sentence using the word armchair.
She came into the dance with a handsome beau. Daniel was an attentive beau. Silvia was a notorious beau snatcher.
Need a sentence using the word crater?