请教一道关于trouble的动词填空题

问题描述:

请教一道关于trouble的动词填空题
There isought to be no trouble ________(dry) your clothes.
打错了,there ought to be no trouble ______(dry) your clothes.

drying
句型是have/there is no trouble in doing sth作什么有困难.
in可以省略.