a knief and fork这个要怎么解释语法呢?能否举出类时的词?

a knief and fork这个要怎么解释语法呢?能否举出类时的词? A fork and knife___on the table. knife,he,a,uses,and,fork a knife and a fork 动词用单数还是复数 a knife and fork 后面接单数还是复数 Many Chinese have trouble using a knife and fork c______. Many Chinese have trouble using a kinfe and fork c___. A fork and knife___on the table. 怎么会是is呢 what do you need in dinner I need( )A.a knife and a fork B.a knife and fork C the knife and fork D.the knife and the fork I a knife use can and fork（.） He s___ the meat with a fork and eats it Pass me a fork. use a fork there ( ) to be a knife and a fork on the table.A.seems B.seem fork fork There is a knife and a fork on the plate 改错 There is a knife and a fork on the plate.怎样修改?