Helping others is a habit, _______ you can learn even at an early age.A. it B. that C.

Question

Helping others is a habit, _______ you can learn even at an early age.

A. it

B. that

C. what

D. one

Answer 1

正确答案：D
本题考查代词的用法。句意应为“帮助别人是一种习惯，一个你在很小时就能学会的习惯。”空格处与前句中的habit构成同位关系，所以选择D项。句中you can learn even at an early age是省略了关系代词that 的定语从句，that在定语从句中作learn的宾语使用。