Question

which sentence contains a dependent clause?
joaquin showed me how to throw a curveball.
quinton studied in the library for his physics test.
zara is moving to the city when she graduates.
i forgot about todays exam.

Explanation:

A dependent clause cannot stand alone as a complete sentence and starts with a subordinating conjunction. In "Zara is moving to the city when she graduates", "when she graduates" is a dependent clause starting with the subordinating conjunction "when". The other sentences are simple or complex - but the clauses in them are independent.

Answer:

Zara is moving to the city when she graduates.