—Is this model plane yours Susan?--Yes it’s mine.It’s made by.A. myself B. yourselfC. hims

问题补充：

—Is this model plane yours,Susan?

--Yes,it’s mine.It’s made by.

A. myself

B. yourself

C. himself

D. herself

答案：

(答案→)A. myself

B. yourself

C. himself

D. herself

解析：四个选项都是反身代词，分别表示我自己、你自己、他自己和她自己，根据上文意思，它是我自己做的，所以选A。