Đề chính thức thi vào 10 môn Tiếng Anh tỉnh Khánh Hòa 2024 - 2025 có đáp án
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I _________ Mark was unfriendly, but now I realize he's a very nice person.

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Write the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.

I _________ Mark was unfriendly, but now I realize he's a very nice person.

used to thinking

used to think

used to be thought

use to think

Giải thích

B. used to think