1.A 2.B 3.B 4.B
II
1.was made
2.being
3.have seen
4.visit
III
1. Our teacher didn't arrive late although the traffic was terrible.
2. Despite his poverty, he studies very well.
3.However I watched the film twice, I didn't understand it.
4.It's about 120 km from Ho Chi Minh City to Vung Tau.