[ Tenses ]
So who…or what…______________ around upstairs?
A. had walked
B. had been walking
C. was walking
D. walked

Random Topics:
Tenses and ArticlesDo / Have / Can - Basic QuestionsPrepositions after Verbs and AdjectiveMain Idea and Sentence StructureTOEICModal Verbs of ObligationModals "Should"If- ConditionalCorrelative ConjunctionRelative PronounsOther quiz:
3rd Person Singular › ViewChoose the third person singular of the verb: PLAY
A. PLAYS
B. PLAYES
C. PLAY
Tag Questions › View
You won’t forget to give me those books back, _____ you?
A. don’t
B. doesn’t
C. do
D. will