24．When Tom was very young he was skateboarding worried his parents a lot.A. in; thatB.

问题补充：

24．When Tom was very young ,he was skateboarding, worried his parents a lot.

A. in; that

B. into; which

C. fond of; that

D. like; which

答案：

A. in; that

(答案→)B. into; which

C. fond of; that

D. like; which

解析：可联系答案网客服索取此答案。