初中英语问题,谢谢A knife and fork 【is】 often used in a west restaura

there is a knife and fork missing There is a knife and a fork on the plate. Mary used (a knife and fork) to have dinner.括号内提问 (1/2)A knife and fork 【 is】 on the desk为什么用is而A knife and a we hold a fork in one hand and a knife in the other lagree w There is a knife and a fork on the plate 改错 A knife and fork ( ) on the table now A is B are C has D was There is a knife and a fork on the plate.怎样修改? 一道英文改错题原句是：There is a knife and a fork on the plate.怎么改? look!There is a fork and knife on the sign,It means there is a knife and a fork 动词用单数还是复数 选择题knife and fork is( )for chinese people A.easy B.hard C.hu