The dictionary helps you pronounce words
Caja means box in Spanish
<span>c) is a sentence fragment
"</span><span>Only if I can get the ticket cheaper online than by calling a travel agent." is a sentence fragment, because even though it might look like a sentence, it is not an independent clause (that is meaningful by itself). In order for the sentence fragment to be a complete sentence, the following could be added to it (in bold):
</span><span>"Only if I can get the ticket cheaper online than by calling a travel agent, will I book it online".</span>
