In this hotel the bread and butter served for breakfast. Meanwhile a knife and fork very

问题补充：

In this hotel, the bread and butter served for breakfast. Meanwhile, a knife and fork very useful for a foreigner.

A. is; is

B. are; are

C. is; are

D. are; is

答案：

(答案→)A. is; is

B. are; are

C. is; are

D. are; is

解析：根据意义一致原则，用and连接的两个单数名词在意义上指同一个人、物或概念时，谓语动词用单数，这时and后面的名词前不用介词。