Question

By six o'clock on Sunday i (learn) all the words

Answer 1

Эм...... незнаю как ответить 

Answer 2

By six o'clock on Sunday, I had learned all the words.

Learning the Words by Six O'Clock on Sunday

Learning all the words by six o'clock on Sunday implies that the task of learning the words was completed before that time. It suggests that the speaker had finished learning the words by that specific deadline.

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