问题
选择题
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
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。
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