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。