[ Modal Verbs ]
She … what happened unless she was there.
A. couldn’t have known
B. couldn’t know
C. mightn’t have known
D. mightn’t know
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Present Perfect and Present Perfect Progressive TensesGrammar - must & have toModals, Phrasal Verbs, Gerunds and InfinitivesSimple Past Tense & Future TenseFirst & Second ConditionalConditionals and Modal VerbsComparative AdjectivePast SimpleFuture - Will and Be going toAdverb of MannerOther quiz:
Grammar › ViewMt Everest is …………………highest mountain.
A. a
B. an
C. the
D. nothing
Comparatives and Past Perfect Tense › View
I was sure that I ___________ her before.
A. had saw
B. seen
C. had seen