You can't imagine wahat great trouble they have____the problem ____
A to solve ,being discussed B solving ;being talked about
C to solve,to talk about D solving,to discuss
人气：419 ℃ 时间：2019-11-11 22:06:34
解答
A
have to do sth
BD的ing形和have不能搭配
being discussed现在分词被动式做定语修饰problem,表示正在被讨论的问题
推荐
猜你喜欢
