问题

You can’t imagine what great difficulty we have ever had ________ with the problems.

A:done
B:doing
C:for doing
D:to do

正确答案是：

同类题型

I have _______ food at home.

The survey ________ in our school last month shows that about 2 percent of the students are addicted to Internet games[ ]

Our English teacher loves us very much and he ________.

If you are not familiar ________ the topic, you may write something that is familiar ________ you.

How was your vacation to Chiang Mai, Clara— It was great! Only one problem, I _____ two pounds after staying there for a week!