Question

Which sentence contains a subordinate clause?

Answer 1

The answer is D) Unless the weather forecast changes, we will not be traveling to the lake tomorrow.

The subordinate clause above is introduced by a subordinate conjunction, "unless". The idea expressed in it depends on the idea expressed by the main clause to make complete sense. In this case, we can ask the question: what will or won't happen unless the weather forecast changes? The answer to this question will be the main clause. Without it, the information given by the subordinate clause will sound incomplete.