[求助]请教几道笨问题

poplar

大家好：

　　我有好几道语法题不明白，帮一帮小妹啊．

１．At the time of Columbus' voyages,Native Americans used an astounding diversity of language,( bygreater  far than  )the diversity used by Europens.请分析一下句子结构，划线部分的谓语去哪里呢？

２．Ｃlimate is the primary force that distinguishes one biome, or major terrestial,from another.为什么在major前面用而不用and　，为什么把逗好放在from的前面呢？

3.vegetarian and scholar 是可数名词吗／

４．Big_band jazz relies on fixed arrangements,where(     there is more     )than one instrument playing some of the parts,rather than on improvisation.    a. there is more.  b. more.why donot more.

5.(prepared by the United States govermment"s bureau of labor statistics of goods and services with past costs.请分析一下句子结构啊／

谢谢了！

poplar

你好：

　　我的第五个问题是这样的啊：

　　５．（　　　　　　　　　）　by the United States goverment"s Bureau of Labor Statistics,the Consumer Price Index compares current costs of goods and services with past costs.    Ａ. to pre pare .   B.as it prepared.     c.prepared.答案是Ｃ啊．为什么不选Ｂ　呢？

谢谢罗！

poplar

你好啊：

　　　嗄，原来是这样的啊．我明白啊！

谢谢！