How close parents are to the children a strong influence on their character.A. to haveB.

问题补充：

How close parents are to the children a strong influence on their character.

A. to have

B. having

C. have

D. has

答案：

A. to have

B. having

C. have

(答案→)D. has

解析：可联系答.案.网客服索取。