请教新东方语法教程上的几道题(2)

Exercise 18

38.the sensation of sound is produced how vibrations transmitted through the air strike the eardrum.

答案是C,但是要怎么改?

35.the 19th century romantic movement in art was partially a reaction to what was perceived as overemphasis on reasonable and order in neoclassicism.

D怎么错了?

Exercise 21

19.Practical problems limit the ability of astronomers to determine the mass of asteroids,who are small planetarybodies orbiting the sun.

C是错的,应改成which,但是我觉得B好像也不对?不是应该是abilities吗?因为后面astronomers也是复数.

我这个根本不考TOEFL的人也又一次看到了同一题，先搜索，再提问，做一个勤劳的小蜜蜂！！

38 when

35 reasoning/reason!@#$%^&*

19 为什么要复数，我跟你相爱叫OUR LOVE，ASTRONOMERS也可以只有同一种ABILITY的。

谢谢大家~~

突然想到了第六题应该改成when,好笨啊,当时没有想到~~

38. 我觉得应该把how换成by,被动语态的标志

35. 改成reason,因为and引导并列结构，后面的order是名词，所以这里也应该是

19. ability在这里是不可数名词

by不能引导从句，when才能引导后面的从句。

同意楼上的.