Chọn đáp án đúng:
1. ILO conventions allow schoolchildren to work during theirholidays and free time. Strict safety measures must be taken
A. ILO conventions will allow schoolchildren to work during theirholidays and free time provided that strict measures are taken
B. If ILO conventions allow schoolchildren to work during theirholidays and free time, strict safety measures will be taken
C. ILO conventions will allow schoolchildren to work during theirholidays and free time unless strict safety measures are taken
D, ILO conventions won't allow schoolchildren to work during theirholidays and free time in case strict safety measures must be taken
2. He doesn't take my advice into consideration. That's why he is so at a loss right now.
A. Unless he takes some exercise, he will not be so unhealthy
B. If he took my advice into consideration, he wouldn't be so at a loss right now
C. If he had taken my advice into consideration, he wouldn't have been so at a loss right now
D. But for my advice, he would have been at a loss right now
3. I didn't pay attention to the teacher. I was punished by her
A. I wouldn't have been punished if I had paid attention to the teacher
B. Although I paid attention to the teacher, I was still punished by her
C. I would have been punished if I had paid attention to the teacher
D. Unless I was punished by the teacher, I would pay attention to hẻ
4. He was a poor man. He led a devoted life to the revolutionary cause
A. He could not devote his life to the revolutionary cause because of his poverty
B. If he had not been so poor, he could have devoted his life to the revolutionary cause
C. Poor as he was, he led a devoted his life to the revolutionary cause
D. He led a devoted his life to the revolutionary cause, but he was so poor
