[ Past Simple ]
They ___________ find the cat because it was hiding under the white car.
A. could
B. couldn’t

Random Topics:
Past, Present, FutureSentence LabelingMust Vs Have toPast or Present Verb TensePast Simple Negative & QuestionsBecause of & Inspite ofLinking Verbs & Helping VerbsDo / Have / Can - Basic QuestionsTypes of PhrasesGrammar, adverbs of frequency placementOther quiz:
Grammar › ViewJack ought to apologize for his mistake, __________ he?
A. must
B. could
C. wouldn’t
D. shouldn’t
Grammar › View
Use the correct form of the verb
I …… him only one letter up to now.
A. sent
B. have sent
C. shall send