I’m sure it wasn’t Mr. Phong you saw because he’s in Hanoi43/80Choose the best answer amongA, B, C, or D which has the same meaning with the original sentence: I’m sure it wasn’t Mr. Phong you saw because he’s in HanoiIt couldn’t be Mr. Phong you saw because he’s in HanoiYou mustn’t have seen Mr. Phong because he’s in HanoiIt can’t have been Mr. Phong you saw because he’s in HanoiMr. Phong mightn’t see you because he’s in Hanoi.Giải thíchĐáp án là C. can’t have done: để thể hiện suy đoán không chắc chắn