Question

Mrs Green ____ (teach) English in a middle school. She ____ (begin) to teach there in 1993.

还有一道 Mr Black ____ China for many years.
A. has been to B. has come to
C. has been in D. came

Answer 1

Mrs Green teaches (teach) English in a middle school. She began begin) to teach there in 1993.
第一空是一贯的动作，所以用一般现在时
第二空有时间状语【in 1993】所以用一般过去时
Mr Black ____ China for many years.
A. has been to B. has come to
C. has been in D. came
选C
因为后面有【for many years】所以用现在完成时，又因为是一段时间，所以用持续性动词in
有不会的可以再问我

Answer 2

teaches
began
C

Answer 3

teaches
began
A.has been to

Answer 4

teaches began
选B