英语语法达人请进，左边是正确答案，横线上的是我错选的答案，请给出具体原因，以题号为准

Question

A2. There ought to be less anxiety over the perceived risk of getting cancer than ____B____ in the public mind today.
[A] exists
[B] exist
[C] existing
[D] existed
B3. The professor can hardly find sufficient grounds ____A____ his argument in favor of the new theory.
[A] which to base on
[B] on which to base
[C] to base on which
[D] which to be based on
C6. Hydrogen is the fundamental element of the universe ___A_____ it provides the building blocks from which the other elements are produced.
[A] so that
[B] but that
[C] in that
[D] provided that
D8. ___A_____ is generally accepted, economical growth is determined by the smooth development of production.
[A] What
[B] That
[C] It
[D] As
A9. It is believed that today’s pop music can serve as a creative force ____D____ stimulating the thinking of its listeners.
[A] by 通过。。。方式
[B] with
[C] at
[D] on
C10. Just as the soil is a part of the earth, ____B____ the atmosphere.
[A] as it is
[B] the same as
[C] so is
[D] and so is

Answer 1

第2题 than后面省略了there,因此和前面对应，应该是第三人称单数，所以选A。
第3题 如果选A的话，应该是在逗号隔开的非限制性定语从句。题干是限制性定语从句，on为介词，根据语序，选B
第6题你只要知道选项的意思就可以选了，in that表示因果关系，so that 意思不对
第8题如果选A就缺宾语了，因为（what generally accepted is that……）按意思，选As
第9题根据as 和 creative以及句子意思的提示 应该选一个表示方式的，故选A.
第10题我解释不清楚，不好意思啊

Answer 2

10题后半句为主句，选择有主谓结构的选项，无须连接词。