[ Modals with Perfect Infinitive ]
I ___ at the door since, in this way, I awoke the baby.
A. needn’t have knocked
B. can’t have knocked
C. mustn’t have knocked
D. should have knocked

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AntonymsModals, Phrasal Verbs, Gerunds and InfinitivesSimple Present Continuous TenseClauses and ConjunctionPhrasal verbs and Prepositional PhrasesLinking VerbProgressive Tenseswould should couldAdverbsFuture Perfect ContinuousOther quiz:
Grammar › ViewA: My name is Anna. B: _____, Anna. I’m Sophia.
A. It’s nice to meet you
B. Get better
C. Get into trouble
a, an, the, Zero Article › View
Mother Teresa received ___ her Nobel Peace Prize in 1979.
a. a
b. an
c. the
d. X [Nothing]
