Fill in the blanks with the appropriate form of the verb given in brackets: "There is a crack in…

Fill in the blanks with the appropriate form of the verb given in brackets: "There is a crack in the rail a few meters from here !!! If the train____(7) (go) over it, there is surely going to be a mishap," the man said quietly. "In this dark night, how ____(8) (do) you see the crack which is far in front ?” someone asked.