英语问题：根据情景填上恰当的词语使对话完整.
A: What's __1___ with Miss Brown? She seems a little tired.
B: Yeah, she has seven classes today.
A: That's why! She talks too much.
B: She must have a sore ___2___.
A: Yeah, she should drink enough water and take some ___3___.
B: And after class, she just sits there to correct the homework without ___4___.
A: She must have a ___5____ back. She should really learn to take breaks from the work.
B: And we should learn to take care of her.
A: OK, let's bring her some hot tea with honey.