Mr. Wang has two sons； one has got married and the other has gone abroad.A. grow-upB. gr

问题补充：

Mr. Wang has two sons； one has got married and the other has gone abroad.

A. grow-up

B. growing-up

C. grown-up

D. grew-up

答案：

A. grow-up

B. growing-up

(答案→)C. grown-up

D. grew-up

解析： grown-up作为一个形容词来使用，表示“成年的”。