题目内容：

在空白处填上适当的句子。

A: Excuse me.

B: Yes?

A: 1.__________________________?

B: My favorite subject is English.

A: 2._________________________?

B: I learn it by watching English-language videos.

A: 3._______________________?

B: I have learned it  for two years

A: 4.__________________________?

B: Yes, I have studied with a group.

A: Thank  you  for  answering  my questions.

B: 5.__________________