A first /a second/the first /the second在书上经常看见这四个例：1.Most people in the USA speak English as the first language2 Most people speak English as a second language应该什么时候用THE什么时候用A?还有一个问题没搞

He asked () question before i could answer () A.a second;a first B.a second;the firstC.the second;the firstD.the second;a first 为什么说English plays a role as a second or a first而不是the second or the first Mr Zhang asked me ————question before i could answer————.A the second； the first B a second； a first C a second ,the first D the second； a first为什么选C He asked_____question before I could answered____.A.a second;a firstB.a second;the firstC.the second;the firstD.the second;a first应该选什么?为什么? A first-or upper -second class undergraduate honors there is a first time there must exists second times. a second a second be the first/second 与be first/second有什么区别例题：That is Kangkang's ___pen .A the second B second注：the second 有第二的意思而second表示第二次，为什么答案是B A FIRST COURSE IN PROBABILITY 6TH EDITION怎么样 FIRST COURSE IN PROBABILITY A 7TH EDITION怎么样 It's _____day of school.A.the first B.first C.one D.second Mr Zhang asked me question before i could answer A the second the first B a second a firstC a second D the second a first请帮我翻译下 在说为什么 Mrs Green'( )son is in Japan now A.two B.second C.2th D.the second要说明理由. 数列(英文题目)14.If the first,second and fifth terms of an A.P.are three consecutive terms of a G.P.,find the common ratio.(3)28.The 3rd,5th and 8th terms of an A.P.are consecutive terms of a G.P.Find the common ratio.(1.5) He was asked time to hand in his dictation.A、the second B、a first C、the first D、a second该选哪个答案,为什么呢? He wad asked-------time to hand in his dictation.A,the second B,a first C,the first D,a second为什么选D答案 Most people in the USA speak Englishe as ___language.A.a second B.the first C.the second D.a first