一, Listen and choose the correct answers.
1，B
2，A
3，D
4，C
5，B
6，D
7，D
8，C
9，B
10，C
1, Listen to the dialogue for the first time and decide if the following statements are true or false.
1，OK -→ NOK
2，OK -→NOK
3，OK
4，OK
5，NOK
6，OK
7，OK
2, Listen to the dialogue for the first time and decide if the following statements are true or false.
1，B
2，A
3，D
4，C
5，D
二, Listen to the dialogue for the first time and decide if the following statements are true or false.
1，OK
2，NOK
3，OK
4，NOK
5，NOK
6，OK