[ Tenses ]
I was writing a letter at 5 o’clock yesterday.
A. Present Simple
B. Present Continuous
C. Past Continuous
D. Past Simple

Random Topics:
Travel VocabularyPre-intermediateInfinitive FormsZero & First ConditionalAuxiliary WordsCompound AdjectivesIf ClausesAspect or tenses of VerbsVerb and Preposition-ing / InfinitiveOther quiz:
Grammar › ViewBefore you turn in your test
A. independent clause
B. dependent clause
C. both a dependent and an independent clause
Vocabulary › View
What is an antonym of stagnant?
A. rotten
B. reminiscent
C. putrid
D. active