问题
选择题
Mr Black ___China since the summer of 1998. [ ]
A. has been to
B. has been in
C. has come to
D. came to
答案
答案：B
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Mr Black ___China since the summer of 1998. [ ]
A. has been to
B. has been in
C. has come to
D. came to
答案：B
