Complete the sentence with a suitable modal.

You ________ bring a change of new clothes, since we may have to stay overnight.

need to

The correct answer is Option (1) - need to

You need to bring a change of new clothes, since we may have to stay overnight.

• "Need to" indicates necessity or obligation, which fits well in the context of the sentence where it suggests that bringing a change of clothes is important due to the possibility of staying overnight.
• The other options do not convey the same level of necessity:
  • "Dare to" implies courage to do something, which does not fit here.
  • "Ought to" suggests a recommendation but is less direct than "need to."
  • "Used to" refers to past habits and does not fit the context of this sentence.