[ Adverb Clauses ]
He couldn’t go to the concert __________ he had to work.
A. if
B. until
C. unless
D. as
Select your answer:

Random Topics:
Tenses and ComparisonsComparison DegreeFuture TensesGerund/ To Verb/ VerbConditional SentencesActive-Passive VoicesSimple Present and Past TenseIndependent/Dependent Clauses & Relative ClausesVocabulary, Grammar, SpellingConjunctions, Interjections and DeterminersOther quiz:
Grammar › ViewWhich is comparative?
Whose English is ……… Mine or his?
A. Good
B. better
C. best
Adjective › View
She was wearing a ________ dress.
a.green beautiful
b.beautiful green
