[ 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

Random Topics:
AntonymsModals, Phrasal Verbs, Gerunds and InfinitivesSimple Present Continuous TenseClauses and ConjunctionPhrasal verbs and Prepositional PhrasesLinking VerbProgressive Tenseswould should couldAdverbsFuture Perfect ContinuousOther quiz:
Grammar › ViewWe made fruit salad by __________ yesterday.
A. ourself
B. itself
C. themselves
D. ourselves
Modifiers › View
That is…… (beautiful) car in the shop.
A. the most beautiful
B. the beautifulest
C. more beautiful
D. most beautiful
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]
