Not only he but also his parents China for two years .A. have been inB. has been inC. has

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。