[ Tenses and Sentence Completion ]
He wasn’t able to attend the meeting ______ he had another appointment.
A. because
B. unless
C. although
D. because of

Random Topics:
Will and Going toConditionals and WishesPassive of Modal VerbsVerb + InfinitiveVocabulary, Adjective & PrepositionReflexive Pronouns & Modal VerbsModals and Semi-ModalsComparison DegreeVerb Tenses and UsagePresent Simple ProgressiveOther quiz:
Grammar › ViewIt was noisy next door last night. Our neighbors ………… a party.
A. had been having
B. had
C. were having
D. are having
Grammar › View
Identify the helping verb in the following sentence.
I can dance for five hours without stopping.
A. can
B. dance
C. for
D. I