Luckily, I _________ a new pair of sunglasses as I found mine at the bottom of the bag

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Mark the letter A, B, Cor D on your answer sheet to indicate the correct answer to each of the following questions

didn‟t need to buy

needed not to buy

hadn‟t to buy

needn‟t have bought

Giải thích

Đáp án là A.

“didn‟t need to buy” = đã không cần mua = đã không mua
Còn “needn‟t have bought” = không cần đã mua = đã mua