A.
1. in
2. learn
3. how
4. on
5. that
VI.
1. Although Minh is poverty, he stll helps the orphan.
3. She ordered her students to sit down and be quiet.
3. You won't be allowed to go in the house.
VII.
1. Mrs. Nga, who does volunteers work at the local orphanages, is an unmarried teacher.
2. Easter, which is celebrated in many countries in the world, is a joyful festival.
3. Thousands of people were saved because scientists had warned them about the tidal wave.
