Topics: GRAMMAR - Could / Could not
The band ___________ at the concert because the singer was ill. (not perform)
A. could perform
B. couldn’t perform
Select your answer:

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Definite vs Zero Article Abstract NounsAdverb of TimePast TensesPresent Perfect and Present Perfect Progressive TensesConditionals / Unreal PastSentence StructuresPRESENT SIMPLE vs PRESENT CONTINUOUS + QUANTSo / Neither / Either / TooGrammar-Present Continuous-Sentence MakingSubject Verb Agreement Irregular VerbOther quiz:
Grammar - Present Perfect with for and since › ViewHe has written twelve books ___________ he moved to this apartment.
A. for
B. since
C. yet
D. already
Grammar and Vocabulary › View
A: Are you watching TV?
B: No, I’m not. I ________.
A. is working
B. work
C. am working
