Ⅶ.补全对话
根据下面的对话情景，在每个空白处填上一个适当的句子，使对话的意思连贯、完整。
A: Hey, Kangkang! 46. ?
B: I'm using an app to learn English.
A: What's it?
B: It is an AI language model developed by a company.
A: 47. ?
B: Yes, it is quite useful in English learning.
A: What do you usually use it to do?
B:48. . It provides many interesting ways to remember new words.
A:49. ? I want to improve my writing.
B:Certainly. It has a lot of useful ways of improving English writing. It points out grammar mistakes clearly. And I even use it to help with my English speaking.
A:50. . I must have a try. I'm always nervous when speaking English.
B:I'm sure it will be a good choice for you.
A:I can't wait to use it now!

46. What are you doing
47. Is it useful in English learning
48. I usually use it to remember new words
49. Is it a good way to improve English writing / Can it help me improve my writing
50. Sounds great / That's good / ...