根据题目要求完成下列任务。用中文作答。
下面是四位英语教师的英语教学片段:
Teacher  A
T: What  day is today?
S: Is  Monday.
T: Oh,  good. It is Monday?
S: Yes,  it is Monday.
Teacher  B
T: Who‘s  this woman?
S: He is  ...
T: Oh,  not he. You should use she.
Teacher  C
T: What  did you do yesterday?
S: I do  my homework at home.
T: Oh,  great!  What about you, Lin Tao?
Teacher  D
T: All  of you will be a teacher today. Please check the homework of your deskmates.  When you find the mistakes, circle and correct them please.
Ss: OK.
(1)请分析A、B、C三位教师对待学生语言错误的方式及其利弊。(9分)
(2)教师D采用了什么纠错方法?请简要说明。(5分)
(3)教师在对待学生语言错误上应注意哪些关键点?(16分)