Question

HELP QUICK RUNNING OUT OF TIME!!!!!Which sentence is punctuated correctly?The aliens suffered from exhaustion, after traveling several light years.They needed some relaxation, when they finally landed their spaceship.After they rested a few days, the aliens revived sufficiently to explore.They needed all their energy, once they started hiking the rough terrain.

Answer 1

The answer is:

After they rested a few days, the aliens revived sufficiently to explore.

Subordinate or dependent clauses, such as "After they rested a few days," do not express a complete thought. They must be joined to at least one independent clause with a relative pronoun or a subordinated conjunction.

In this case, the sentence begins with the dependent clause, which starts with a subordinating conjunction like after. As a result, a comma must separate the dependent clause from the main clause.