He did not work hard. He failed the exam

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Mark the letter A, B, C, or D to indicate the sentence that best combines each pair of sentences in the following questions.

He did not work hard. He failed the exam.

Unless he had worked hard, he would have failed the exam.

Even though he failed the exam, he didn’t work hard.

If he had worked hard, he would have passed the exam.

However hard he worked, he failed the exam.

Giải thích

Đáp án: C

Giải thích: Cậu ấy ko học chăm. Cậu ấy đã trượt kỳ thi. = Nếu cậu ấy học chăm, cậu ấy đã qua kỳ thi.