-Are your family ready for rafting?----Yes I really want my children to experience th

问题补充：

---- Are your family ready for rafting?

----Yes, I really want my children to experience that they are young.

A. \

B. if

C. unless

D. while

答案：

A. \

B. if

C. unless

(答案→)D. while

解析：考查连词辨析。If如果…；unless除非…，如果…不…；while当…时；然而；尽管；句意：—你的家人准备好了去漂流了吗？—是的。我真得想我的孩子在年轻的时候去体验这一些。根据句意说明D正确。