---K-E-Y key.A. What’s this?B. Spell “key” please.C. What color is the key?D. This is

问题补充：

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--- K-E-Y, key.

A. What’s this?

B. Spell “key”,please.

C. What color is the key?

D. This is a key.

答案：

A. What’s this?

(答案→)B. Spell “key”,please.

C. What color is the key?

D. This is a key.

解析：根据答语可知这是对单词的拼写。有选择项的提示可知选择B。