nager was worried about the press conference his assistant _____in his place but ,luckily ,everything was going on smoothly.

the girl was walking down the street, she saw an accident.

Chinese vessels ________ 646,000 square kilometers in the southern Indian Ocean in search of the missing Malaysian flight MH370.

The old man ________ to live with his wife ,but now he is used to __________ by himself after she died .

Every winter holiday, I will go back to my hometown and stay with my grandparents, where I don’t even ________ checking email or anything else.