[ Past Tenses ]
Yesterday, the system __________ (crash) due to a power outage.
A. crashed
B. was crashing
C. had crashed
D. had been crashing

Random Topics:
Adjectives and PrepositionsRelative Clauses and Past PerfectAdverb of ConcessionPerfect Tenses of VerbsAdjective & AdverbsGrammar: MorphologyMixed ConditionalSubordinating ConjunctionsPast Perfect or Past Perfect ContinuousConjunctive AdverbsOther quiz:
Comparatives and Conjunctions › ViewI want to buy a new phone, __________ I don’t have enough money.
A. so
B. but
C. or
Grammar and Vocabulary › View
Every Saturday morning, I have to do ______ around the house.
A. bands
B. chores
C. crops
D. styles