Only when he read the newspaper _____ 
the US President Obama would deliver a speech in his university．
| A．he knew | B．he had known |
| C．had he known | D．did he know |
When he was opening the door, he was ___________ that he was being followed by a policeman.
| A．conscious | B．casual | C．careful | D．doubtful |
The teacher has a(an) ___________ to get off topic; sometimes it is difficult for students to make out what he is saying.
| A．concern | B．determination | C．intention | D．tendency |
Can you believe? To raise an adopted dog, a young Australian even stayed single, __________ possible relationships with female students on campus!
| A．turning out | B．turning down | C．turning away | D．turning in |
When will the government _______ its position on equal pay for women?
| A．acquire | B．clarify | C．advocate | D．guarantee |
—Did you make sense of what the man said just now?
—No, his meaning didn’t . Would you explain it to me?
| A．get through | B．get off | C．get across | D．get out |