1 A
2 A
3 C
4 C
5 D
6 B
7 A
8D
9C
10D
11A
12B
13C
14B
15D
16A
17B
18C
1 been
2 its
3 which
4 led
5 on
6 that
7 at
8 as
Ex 14:
1 C
2 A
3 D
4 C
EX 15:
1 C
2 C
3 D
4 A
5 D
6 B
7 C
8 A
.
Bn xem lại đề nhé, yêu cầu chỉ đúng khi n=0