在空白处填上适当的句子。
A: Excuse me.
B: Yes?
A: __________________________?
B: My favorite subject is English.
A: _________________________?
B: I learn it by watching English-language videos.
A: _______________________?
B: I have learned it for two years
A: __________________________?
B: Yes, I have studied with a group.
A: Thank you for answering my questions.
B: __________________