Choose the appropriate question tag from the given options to complete the given sentence.

Most of us will join the party, ______?

won't we

The correct answer is Option (3) - won't we

• The main sentence is "Most of us will join the party," which is in the future tense using "will."
• The appropriate question tag for a sentence with "will" is "won't" (short for "will not").
• The correct structure follows: "Most of us will join the party, won't we?"

OTHER OPTIONS

• "aren't we"  (Incorrect because "are" is present tense, while the main sentence is in future tense.)
• "wouldn't we"  (Incorrect because "would" is conditional, not future simple.)
• "shall we"  (Incorrect because "shall" is used for suggestions or invitations, not confirmations.)