1.C.
Always can be recognizable
这个句子省略掉了一些成份.原句应为
It always can be recognizable (that) people and objects in this frontier painter's works are often presented in a flat,abstract manner.
A ,if表条件,B.while是当...的时候,D.although尽管...
只有C的语意正确.
2.c.
没有听过有much as 和more as这种说法的,只有 as much as,as more as..与...一样多.
more + 形容词/副词 + than 的句型是对两件事或两个人的动作性质或性格本质等所做的比较.
例如：
John is more pompous (or pretentious) than Mike.(约翰比麦可更自负)
Calvin writes more beautifully than any other person in his office.
(卡尔文写的字比同办公室的其他人都要好)
因为 of + 名词 = 形容词
He is more of a fool than I thought.(他比我想像的更笨)
= He is more foolish than I thought.
了解了吗?