[ Perfect Modals ]
Which perfect modal expresses regret or criticism about a past action?
A. Could have
B. Must have
C. Should have
D. May have

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Vocabulary › Viewto relieve or make more bearable
A. antidote
B. cajole
C. indulgent
D. alleviate
Articles › View
Polar bears don’t mind —– cold weather.
A. the
B. zero article