[ Grammar ]
Which sentence is correct?
A. You have to learn these words at heart.
B. You have to learn these words by heart.
C. You have to learn these words for heart

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Subject/Verb Agreement with Collective Nouns › ViewThe pack of dogs ____________running off in different directions.
A. is
B. are
Vocabulary › View
Cordial
A. courteous and gracious; friendly; warm
B. aggressively, greedy, grasping
C. to give emphasis or prominence to
D. examined or perused carefully
