He didn’t make ________ clear when and where the meeting would be held.
| A．this | B．that | C．it | D．these |
－I’ve never found a better job and I’m so glad.
－_______.
| A．I don’t think so | B．Too bad | C．Congratulations | D．Don’t worry |
The reason _______ matters most in his failing the English test is _______ he pays little attention to sentence structures.
| A．why, that | B．that, that | C．which, because | D．what, because |
_______ is hard is to do good all one’s life and never do anything bad.
| A．He | B．It | C．That | D．What |
Just because they make more money than I do, _______ they seem to look down on me.
| A．so | B．and | C．but | D．不填 |
I’d like to have visited the Palace Museum last week, but something unexpected _______ to my father.
| A．had happened | B．happened | C．has happened | D．happens |