George won five medals at the competition. His parents ______ very pr...

Question

George won five medals at the competition His...

2

George won five medals at the competition. His parents ______ very proud of him.

could have beencan’t havecan’t bemust have been

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Exam24h An Vũ · Accepted Answer · 2019-01-03T15:12:43.000Z

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Đáp án đúng của câu này là:

must have been

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