it was the oldest car taking part=it was the oldest car which have been taken part?如果不对应该是怎么样的.如果对了,这个语法如何解答.

__map dated back to about 3000B.CA.The oldest knownB.Known as the oldest C.It was the oldest knownD.Known to be the oldest it was the oldest car taking part. ——map dated back to about 3000 B.CA,The oldest known.B,It was the oldest known.为什么选A it was the oldest car taking part 这里taking是现在分词吗?it was the oldest car taking part 为什么这里的tak要加ing形式呢 如果是现在分词的形式 那前面不是应该加BE动词吗?还有一句 a search party went into the ca Built in 1885,it was the oldest car taking part.为什么用taking it was the oldest car taking parttake 为什么要加ing? it was the oldest car taking part.这句话的taking 非谓语.求讲解.（ ）map dated back to about 3000B.C.A.The oldest knownB.Known as the oldestC.It was the oldest knownD.Known to be the oldest为什么不能选BC? it was the oldest car taking part=it was the oldest car which have been taken part?如果不对应该是怎么样的.如果对了,这个语法如何解答. it was the oldest car taking part.There wasn't ______onea.an older为什么答案为a It was the oldest car taking part. 请问,这里的taking是现在分词作什么来着呢. 2.—— map dates back to about 3,000 B.C.求讲解2.—— map dates back to about 3,000 B.C.（A） Known to be the oldest（B） It was the oldest known（C） Known as the oldest（D） The oldest known It was the oldest car taking part.There wasn't____one..A.an older B.the oldest C.an elderD.the eldest.这句话中为什么选A,不选B, It was the oldest car taking part.There wasn't____one..A.an older B.the oldest C.an elderD.the eldest.这句话中为什么选A,不选B He was the oldest of six children.翻译 新概念二第56课：Built in 1885,it was the oldest car taking part.It was built in 1885,so it was the oldest car in the race.为什么这句话就是用Itwas built,而不能用built呢? built in 1885,it was the oldest car taking part.请问为什么take要加ing,这是什么语法形式然后可以改成，to take吗 Built in 1885,it was the oldest car taking part为什么要用taking part 是修饰car吗,为什么不用take?