The band ___________ at the concert because the singer was ill. (not perform)
A. could perform
B. couldn’t perform

Random Topics:
Prepositions of TimeActive-Passive VoicesLinking Verbs and TensesModal Verbs and PermissionVerb Tenses“Put” Phrasal VerbPresent Simple Affirmative and NegativeGrammar (Adverbs, Prepositions, Prepositional Phrases)Present Tense (Negatives and Questions)Zero & First ContidionalOther quiz:
Grammar › ViewHe … in the pool for half an hour.
A. Swam
B. Has swam
C. Has been swimming
D. Swim
Simple Past Tense › View
Which sentence is talking about a past event?
A. Danilo works as a coordinator at school.
B. Erick corrected Juliana’s assessment last afternoon.
C. Angélica loves to swim.
D. Deickson knows everything about maps.
Adjective Clause › ViewSend some copies to the reporter who ___________ to write an article.
A. Want
B. —
C. Will
D. Wants
Grammar and Punctuation › View
What needs to be omitted from the following sentence?
Wise men, don’t need advice; fools, don’t take it.- B. Franklin
A. The semicolon
B. The period after B
C. The period at the end of the sentence
D. The commas after men and fools
