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He must be from Africa, ______ can be seen from his skin.
A that B as C it D what

He must be from Africa, __________ can be seen from his skin.

A. that 　　　　 B. as 　　　　　C. who 　　　　　　 D. what

He must be from Africa, ________ can be seen from his skin.

A. that　　　　　　　　　　　　  B. as　　　　　　　　　　　　　　 C. who　　　　　　　　　　　　 D. what

A. that　　　　　　　　　　　　  B. as　　　　　　　　　　　　　　 C. who　　　　　　　　　　　　 D. what

He must be from Africa, ________ can be seen from his skin.

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