I think only when he attends college more independent of his parents.A. will he becomeB.

问题补充：

I think only when he attends college more independent of his parents.

A. will he become

B. he becomes

C. he will become

D. becomes he

答案：

(答案→)A. will he become

B. he becomes

C. he will become

D. becomes he

解析：考查倒装结构。宾语从句only在句首，故从句的主谓要倒装，选A。