44. —Look!The boy is doing some washing. —He is only eight years old but he is very .A. l

问题补充：

44. —Look!The boy is doing some washing.

—He is only eight years old, but he is very .

A. lonely

B. separate

C. responsible

D. independent

答案：

A. lonely

B. separate

C. responsible

(答案→)D. independent

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