—I think it’s going to rain.
—_____ The sky is dark and cloudy.
| A．I guess so. | B．Not really. | C．Why not? | D．How great! |
He felt_______ to work for human rights and progress.
| A．it his duty | B．his duty | C．that is a duty | D．that is his duty |
-- Do you like_______here?
---Oh, yes, the air, the weather and the way of life. Everything is so nice.
| A．this | B．there | C．that | D．it |
The doctor advised Vera strongly that she should take a holiday, but _______ didn’t help.
| A．it | B．she | C．which | D．he |
I was disappointed with the film . I had expected ______ to be much better.
| A．that | B．this | C．one | D．it |
Does ______ matter if he can’t finish the job on time?
| A．this | B．that | C．he | D．it |