问题补充:
Not only he but also his parents China for two years .
A. have been in
B. has been in
C. has come to
D. have come to
答案:
(答案→)A. have been in
B. has been in
C. has come to
D. have come to
解析:根据后文的时间状语内容for two years,判断时态为现在完成时,同时动词应该为延续性动词,只有答案为A。