英语选择:This is _ ruler ._ ruler is yellow.A.the;a B.a;A C.A;the D.a;the

问题描述:

英语选择:This is _ ruler ._ ruler is yellow.A.the;a B.a;A C.A;the D.a;the

C 名词第一次出现用不定冠词A (辅音前)或AN (元音前),第二次再出现时是特指用定冠词THE