Which are independent clauses? check all that apply.
although we walked to the store
they decided to take a long walk
we were able to arrive on schedule
since they will present their paper
he was unsure how to proceed

B) they decided to take a long walk, C) we were able to arrive on schedule and E) he was unsure how to proceed.

Explanation: An independent clause is a clause (a group of words that has a subject and a verb) that has meaning on its own. It is the antonym of dependent clause, which by itself doesn't make sense. From the given sentences, we can see that in options A and D something seems to be missing, they don't make sense (they are dependent clauses), and options B, C and E have complete sense, so they are independent clauses.