He was wild with joy when he ______ a solution to the difficult problem.
#105040
A
made up with
B
put up with
C
came up with
D
kept up with
推荐题目
The 1930s __________ the suffering of the Chinese from war.
#105145
A
wrote
B
witnessed
C
proved
D
supplied
The professor devoted all his life __________ the treatment of AIDS.
#105014
A
to research
B
in researching
C
to researching
D
at researching