4.______in his office work, he had no time to attend to his sick daughter.
When he was opening the door, he was ___________ that he was being followed by a policeman.
The teacher has a(an) ___________ to get off topic; sometimes it is difficult for students to make out what he is saying.
Can you believe? To raise an adopted dog, a young Australian even stayed single, __________ possible relationships with female students on campus!
—Did you make sense of what the man said just now?—No, his meaning didn’t . Would you explain it to me?
Because of the nuclear crisis caused by the earthquake in Japan, many people lined up to buy salt ______ seeking protection from radiation.