In the following sentence, which word is used as a conjunction?

Lisa and Mary were home on time, but Kim, Francine, and Penny weren't going to make it.
A. On
B. But
C. Were
D. And

my answer is b.

correct

Yes.

However "and" is also a conjunction. So this sentence has two conjunctions.

Thanks

You're welcome.

Correct! The word "but" in the sentence "Lisa and Mary were home on time, but Kim, Francine, and Penny weren't going to make it" is used as a conjunction.

To identify the conjunction in a sentence, you must understand that a conjunction is a word that connects words, phrases, or clauses together. In this case, the word "but" connects the two contrasting clauses: "Lisa and Mary were home on time" and "Kim, Francine, and Penny weren't going to make it".