Combine these sentences into one sentence using conjuctions,adverbal connectives to create compound sentence.

It was idle to attempt to ascertain the state of her affections. She didn't have an expressive manner.

Thank you.

because

The word 'because' will get you a complex sentence.

Flip the sentences and use one of the FANBOYS conjunctions to get a compound sentence.

For
And
Nor
But
Or
Yet
So

Which one will make sense?

Here is my work.

She didn't have an expressive manner,so it was idle to attempt to ascertain the state of her affections.

To combine these sentences into one compound sentence, we can use the conjunctive adverb "however" to show contrast between the two ideas. Here is the combined sentence:

"It was idle to attempt to ascertain the state of her affections; however, she didn't have an expressive manner."

In this sentence, the conjunctive adverb "however" is used to connect the two independent clauses, indicating the contrast between trying to determine her affections and her lack of expressiveness.