为什么是lucy is a friend of li lei而不是lucy is a friend of li lei′

为什么是lucy is a friend of li lei而不是lucy is a friend of li lei′ Li lei is a friend of ________.(I) Lucy ,Jim and Li Lei ( )good friend.A.is all B.are all C.all mr li is a friend of _ Who is older ,Lucy ,Li Lei or Jim?找错 Which box is ________,Li Lei's or Lucy's? Li Jun has a good friend _____ the name of Wang Lei,but he l Mum,----is my friend,Li Lei.Li Lei,-----is my mother. 英语翻译是Tom is a friend of Li Ming.还是Tom is a friend of Li Ming 首字母填空：Lucy is a c friend of mine This is Li Lei.He is ( ) my friends.A.me B.one of C.he D./ Li Lei is one of ________ in our class. A．best students B．a