[ Modals with Perfect Infinitive ]
You ___ been at the museum on Tuesday! It was closed all day.
A. must have
B. mustn’t have
C. needn’t have
D. couldn’t have
Select your answer:

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General Knowledge › ViewWhat is the longest river in the world called?
A. Thames
B. Seine
C. Nile
D. Ganges
Vocabulary › View
When you ______ something, you communicate your thoughts in writing or speaking.
A. demonstrate
B. suggest
C. express
D. reveal
