He did not work hard. He failed the exam.
A. Even though he failed the exam, he didn’t work hard.
B. Unless he had workedhard, he would have failed the exam.
C. If he had worked hard, he would have passed the exam.
D. However hard he worked, he failed the exam.
Đáp án đúng là: C
Dịch: Cậu ấy không học chăm. Cậu ấy đã trượt kì thi.
= Nếu cậu ấy học chăm, cậu ấy đã có thể qua kì thi rồi.
Although old-age pensions have risen considerably, they haven’t kept pace with the cost of living.
It was an interesting novel. I, therefore, stayed up all night to finish it.