— I tried it out in this way, but I failed.— Why not it in some other ways?A. to work; try

— I tried it out in this way, but I failed.
— Why not it in some other ways?
A. to work; try doing
B. to work; try to do
C. working; try to do
D. to work; to try doing

(答案→)A. to work; try doingB. to work; try to doC. working; try to doD. to work; to try doing解析：try to do sth，表示努力做某事，而try doing sth，表示试着做某事，同时why not do sth，表示为什么不做某事，根据本题的用意，可知答案为A。

回答的不错