4,1.A
2.A
3.C
4.C
5.A
6.C
7.D
8.B
9.B
10.B
11.A
12.D
13.D
14.B
15.B
16.B
17.D
18.C
19.C
20.B
21.D
22.D
23.C
24.C
25.A
5,2.a,In spite of
b,Although
3.a,because
b,because
4.a,because of
b,because of
5.a,because
b,because of
6,1.Despite of being very tired, I couldn't sleep.
2.In spite of having very little money, they are happy.
3.Although my foot was injured, I managed to walk to the nearest village.
4.In spite of being silly, I enjoyed the film.
5.Despite living the same street, we hardly ever see each other.
6.Even though I was only out for five minutes, I got very wet in the rain.
7.Mary used to have long hair when she was at school.
8.In spite of being a poor student, he studied very well.
9.Because of her sickness, Mary could not go to school.
4.How much does the bicycle cost?
7,1.It is about 316 km from Ha Noi to Nghe An.
2.I used to have time to collect stamps when I was in primary school.
3.In spite of having very little money, they are happy.
4.How far is it from your house to your school?