[ Preposition and Conjunction ]
I know the answer __________ I can’t tell you.
A. unless
B. after
C. but
D. although

Random Topics:
Conjunctions and Verb TensesHave as verb and auxiliaryCompound SentencesModals and ConditionalsFuture Continuous TenseAsking and Giving OpinionModal and Phrasal VerbsTenses and ComparisonsZero & First ConditionalPast Tense vs Present TenseOther quiz:
Grammar › ViewThe juries had an extremely hard time deciding ______________.
A. Who’s painting was the best
B. Whose painting was the best
C. Painting who was the best
D. The best painting was who
Subordinating Conjunction › View
___ you know the answer, raise your hand.
A. Because
B. If
C. When
D. Unless