Which phrase expresses purpose, as in You must study () pass the test?

• A. In Order To
• B. In Order That
• C. So That
• D. For To

Answer: (A)

Expressing purpose with an infinitive phrase is a common and natural way to show why an action is done. When you want to say why you study, you connect the action to its goal with in order to followed by a base verb. So, you would say “You must study in order to pass the test.” This directly links studying to the goal of passing, making the purpose clear and concise.

Other options would require adjustments that don’t fit the sentence as neatly. In order that would need a full clause after it (for example, “in order that you pass the test”), which doesn’t align with the blank here. So that could work in a broader sense but would need the subject included after it, not just a bare phrase. And for to isn’t a standard stand-alone expression for purpose in this structure.