问题
选择题
Helping others is a habit, you can learn even at an early age.
A．it
B．that
C．what
D．one
答案
答案：B
考查定语从句。a habit是先行词，在从句 you can learn even at an early age.中作learn的宾语。所以选B。
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Helping others is a habit, you can learn even at an early age.
A．it
B．that
C．what
D．one
答案：B
考查定语从句。a habit是先行词，在从句 you can learn even at an early age.中作learn的宾语。所以选B。