Questions 1 to 4 are based on the following conversation. At the end of the conversation, you will be given 20 seconds to answer the questions.
Now listen to the conversation.
What has been the major problem in the Great Lakes in recent years

A．They regard it as a supplement to classroom teaching.
B．They think that children spend more time watching TV than necessary.
C．They blame students’ poor ability to read and write on TV watching as a means to gain knowledge.
D．They worry about the unrealistic portrayal of life in TV programs,

A．To teach people to speak English.
B．To explain why language learning is difficult.
C．To compare language learning with other types of learning.
D．To encourage language learners to use these techniques.