viết lại câu C1: Columbus discovered america in the 15th century

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Câu trả lời:
1. It was Columbus who discovered America in the 15th century.
2. Columbus was the one who discovered America in the 15th century.

The 15th century saw Columbus discovering America.

It was in the 15th century that Columbus made the discovery of America.

In the 15th century, Columbus was the one who discovered America.

The discovery of America in the 15th century was credited to Columbus.