His first baby was born soon after he got married, which seemed to have _____ his sense of responsibility.
| A．brought down | B．brought out | C．brought about | D．brought in |
He is very_____; it is impossible to talk him into doing anything he doesn’t want to.
| A．stubborn | B．curious |
C．skeptical | D．gracious |
It was only then ______ I began to have doubts about whether my story had ever been told.
| A．when | B．Since |
C．that | D．yet |
The secretary worked late into the night, ______ a long speech for the president.
| A．to prepare | B．prepared |
C．preparing | D．to be prepared |
There is no doubt _______ nearsightedness is a serious problem among the youth of our country.
| A．/ | B．which |
C．whether | D．that |
You needn’t have ________ the speaker when he was speaking; there was enough time afterwards for you to ask questions.
| A．affected | B．interrupted |
C．involved | D．disturbed |