题目内容：

he sat there with nothing __ except play with her cat.doing 我想知道原因

优质解答

答案 to do
doing 是错的!with nothing 后面的动词形式应该和介词except后的形式一致.except 因为前有行为动词do 而接了无to不定式
同类情况如：我现在无事可做,只有看电视
Now,i have nothing to do but watch TV.