1. (2017·河北) 请听第一篇短文，回答小题。

Hi class, now let's look at the six sentences for part 3.<br />You are going to hear a conversation between a boy-town and a girl-beddy about a TV show.<br />Decide if each sentence is correct or not correct.<br />If it is correct to the letter A for yes, if it is not correct to the letter B for no,<br />you have 20 seconds to look at questions for this part.<br />Now we are ready to start.<br />You hear the recording twice.<br />Hi class, now let's look at the six sentences for part 3.<br />You are going to hear a conversation between a boy-town and a girl-beddy about a TV show.<br />Decide if each sentence is correct or not correct.<br />If it is correct, choose the letter A for yes, if it is not correct, choose the letter B for no.<br />You have 20 seconds to look at the questions for this part.<br />Now we are ready to start.<br />You hear the recording twice.<br />Question number 19.<br />What are they going to hear?<br />What are they going to hear?<br />Question number 20.<br />Which letter should they choose if the sentence is correct?<br />Question number 21.<br />How long will they look at the questions before listening?<br />How long will they look at the questions before listening?

1. （1） What are they going to hear?

   A . Six sentences. B . A conversation. C . News on TV.
3. （2） Which letter should they choose if the sentence is correct?

   A . N B . A C . B
5. （3） How long will they look at the questions before listening?

   A . Three seconds. B . Four seconds. C . Twenty seconds.