问题
选择题
Have they come up ______ the solution ______ the problem? [ ]
A. with, of
B. of, of
C. to, of
D. with, to
答案
答案:D
Have they come up ______ the solution ______ the problem? [ ]
A. with, of
B. of, of
C. to, of
D. with, to
答案:D