.－Why did you have to get that stamp? It’s far from beautiful．－my collection of course．A.

问题补充：

.

－Why did you have to get that stamp? It’s far from beautiful．

－my collection，of course．

A. Completing

B. To complete

C. Complete

D. Completed

答案：

A. Completing

(答案→)B. To complete

C. Complete

D. Completed

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