1.
A. afternoon B. Miss Li C. class
—Good afternoon,
C
.
—Good
A
,
B
.
2.
A. I’m B. Hi C. Hello
—
B
,
A
Sam.
—
C
, I’m Bobby.
3.
A. Yang Ling B. morning C. Good
—
C
morning,
A
.
—Good
B
, Liu Tao.
4.
A. Goodbye B. Yang Ling
—
A
,
B
.
—Bye, Mum (妈妈).
答案：1. CAB/BAC 2. BAC/CAB 3. CAB 4. AB
