you can't imagine what（）great difficulty we have had working out such （）difficult problem 这里两个空要填什么冠词,difficulty可数吗

you can't imagine what（）great difficulty we have had working out such （）difficult problem 这里两个空要填什么冠词,difficulty可数吗
you can't imagine what（）great difficulty we have had working out such （）difficult problem
这里两个空要填什么冠词,difficulty可数吗

you can't imagine what（）great difficulty we have had working out such （）difficult problem 这里两个空要填什么冠词,difficulty可数吗
不填
a
difficulty 既可以是可数的,也可以是不可数的.
做不可数的时候,表示抽象的“困难”,
作可数的时候,表示“困难的事”.
这里强调的是we have had great difficulty,表示抽象的“困难”
后面problem是可数名词.

一空不填
2 a

1.the 2.a/the（特指时用the) difficulty可数，复数形式为difficulties