题干
I saw Linda on the street yesterday, but she didn't see me. She ________ with a woman.
A：talked
B：is talking
C：was talking
D：has talked
答案(点此获取答案解析）
C
I saw Linda on the street yesterday, but she didn't see me. She ________ with a woman.
A：talked
B：is talking
C：was talking
D：has talked
的多项式是（ ）