Henry killed the dog. I'll ask him why ________.
| A．did he do that | B．he did that |
| C．he did | D．he has done so |
It worried her a bit ____ her hair was turning grey.
| A．while | B．that | C．if | D．for |
The reason why I didn't go to Shanghai was ________ a new job.
| A．because I got | B．because of getting |
| C．I got | D．that I got |
________ makes mistakes must correct them.
| A．What | B．That | C．Whoever | D．Whatever |
"Is Mary from New York City " "I don't know _______."
| A．from what city does she come from | B．from what city she come |
| C．what city does she come from | D．what city she comes from |
His success was because of ________ he had been working hard.
| A．that | B．the fact which | C．the fact that | D．the fact |
____ that silver is not widely used as a conductor?
| A．Why is | B．Is it why | C．Why is it | D．Why is that |
He made another wonderful discovery， _____ of great importance to science.
| A．which I think is | B．which I think it is | C．which I think it | D．I think which is |
I don’t like ____ you speak to her.
| A．the way | B．the way in that | C．the way which | D．the way of which |
I finally got the job I dreamed about. Never in all my life ____ so happy.
| A．did I feel | B．I felt | C．I had felt | D．had I felt |