(2013·新课标Ⅱ卷)Since nobody gave him any help, he have done the research on his own.
Following the successful Beijing Olympic shanghai_______70 million people for the 2010 World Expo.
_______of danger in the street at night, she had to go home, with a friend_______her.
—Jack, can you make a sentence to ________ the meaning of the new phrase? —Well…
—Shall I lock the lab now before I go home ? —__________ . I’ll check it myself later.
—Really? Who will give _________ lecture? — Mr. Wang, ________ professor from Nanjing University.