_ _ _ _ _ _ _they're late again, I'll be furious. A. If B. Unless - If vs. Unless | English Grammar Quiz

_ _ _ _ _ _ _they’re late again, I’ll be furious.

A. If
B. Unless

Random Topics:
Subject-Verb Agreement Intensive vs. Reflexive Pronoun There vs. It

How to use : Read the question carefully, then select one of the answers button.

Tips : If this page always shows the same questions, make sure you correct the question first by pressing the "check answer" button.