A.？ Until the two rulers of this area forced their way through in the foggy age.
B.？ We want to know whether this road to the west will never end. The road ahead is getting darker and darker.
C.？ The highest cliff is less than a foot from heaven, and the withered pine trees hang low on the cliff surface.
D.？ What if he is not loyal, but a wolf to his companions? .
Extended data:
"The difficulty of Shu Dao" is an ancient theme of Li Bai's copying Yuefu, with rich imagination. It focuses on the wonderful and breathtaking mountains and rivers on the road, and reveals some worries and worries about society. Poets generally follow the clues from ancient times to the present, from Qin to Shu, and describe them by grasping the landscape characteristics of various places to show the difficulty of Shu Dao.
It is a passage from "Aye, Woo, Aye" to "Then the ladder is connected with the stone pile". At the beginning, he spoke highly of the difficulty of Shu Dao and pointed out the theme with strong emotion, which laid the tone for the whole poem. With the ups and downs of feelings and the changes of natural scenery, the chanting of "it is difficult to get through the Shu Road and get to the sky" appears repeatedly, like the main theme of a piece of music, which touches the readers' heartstrings.
The whole poem is 294 words, mixed with prose, with uneven sentences, bold and free and easy, strong feelings and sighing songs.
There are many hidden pictures in the poem, whether it is the height of mountains and the urgency of water, the improvement of rivers and mountains, the desolation of trees and the danger of climbing mountains and cliffs, all of which are magnificent, meteorological and broad, which embodies the artistic characteristics and creative personality of Li Bai's poems. Shen Deqian, a poetry critic in the Qing Dynasty, commented on this poem: "The strokes are vertical and horizontal, such as flying, and the fingers are like thunder."