Never in my wildest dreams ________ these people are living in such poor conditions.
| A．I could imagine | B．could I imagine |
| C．I couldn’t imagine | D．couldn’t  I imagine |
—Haven't I seen you some place before?
—Yes. That's ________ I don't go there anymore.
| A．because | B．how |
| C．why | D．when |
His writing is so confusing that it's difficult to make out ________ he is trying to express.
| A．what is it | B．what is it that |
| C．what is that | D．what it is that |
I couldn't imagine ________ difficult it was for these badly injured victims to make it to the hospital.
| A．when | B．how |
| C．what | D．where |
After a day's exhausting climb we arrived at ________ we had been told was Garden in the Air.
| A．what | B．which |
| C．that | D．where |
The mother, who is strict with her two daughters, has a clear list of ________ they are not permitted to do.
| A．why | B．how |
| C．what | D．which |