天山新题20中的问题

2.     Those who have visited the Grand Canyon have typically seen layers of sediment in the gaping canyon, with different colors that mark the passage of time like the rings in a tree trunk.

(A) seen layers of sediment in the gaping canyon, with different colors that mark

(B) see layers of sediment in the gaping canyon, whose different colors mark

(C) been seeing layers of sediment in the gaping canyon, whose different colors are markers of

(D) been able to see layers of sediment in the gaping canyon, with different colors marking（D）

(E) seen layers of sediment in the gaping canyon, marking by different colors

A错在哪里？

That从句修饰和分词修饰的区别？

还有一道题有疑惑。

9.     Baker was perhaps not the most gifted soloist in the orchestra, but the conductor felt what was lacking in his technical skill was more than made up by the passion with which he played the music.

(A) what was lacking in his technical skill was more than made up by

(B) what he lacked in technical skill was more than made up by

(C) whatever was lacking in his technical skill was more than made up by

(D) whatever he lacked in technical skill was more than made up for by（B）

(E) whatever he lacked in technical skill he more than made up by

C的语法错误在哪里？