can‘t think of any solutions ( )problem A.for B.of C.to D.in

问题描述:

can‘t think of any solutions ( )problem A.for B.of C.to D.in
为什么,

solution to sth是...的解决办法,to是固定的,不能改成其他介词,还有类似的词也用to的
比如answer to sth,key to sth等等