[ Modal Verbs ]
I’m not sure, but we ___ left the keys at the restaurant.
A. had to have
B. mustn’t have
C. might have
D. can’t have

Random Topics:
Conjunctions and Sequence ConnectorsVerb BEParticiple - ing/ edPresent Perfect TenseArticles and NounsZero & First ContidionalLinking WordsPast Perfect Tense and Past TenseAdverbs, Prefixes, and SuffixesPresent Continuous TenseOther quiz:
Simple Tenses › ViewMarta always __________ her parents after class.
A. help
B. helps
C. helped
D. will help
Intermediate Grammar › View
Don’t ….. me. I’ll be back late
A. hope for
B. waiting for
C. expect
D. wait for
Grammar › ViewThe exam was too difficult. It wasn’t ___________________.
A. easy enough
B. too easy
Grammar › View
I strongly ______ that honesty is the best policy in any situation.
A. believe
B. is believing
C. believes
D. are believing
