[ Perfect Modals ]
Which perfect modal is used to express that something was possible but did not happen?
A. May have
B. Should have
C. Could have
D. Must have
Select your answer:

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Grammar › ViewI have _____ homework to do.
A. many
B. much
C. a lot
D. a lot of
Gerund or Infinitives › View
You never forget ________ Paris for the first time.
A. to see
B. seeing
