Journalists present at the press conference all wanted to know whether she had got married secretly, but she ______ the subject throughout the conference.

When the exam is over, you should hand in your exam papers, finished or _____

What would you wish to do if you were a college student again? —That’s very hard to say, but I wish I___________ when I was a college student.

I think there will be______ people and______ pollution in the future.

days after the aircraft went missing, an international effort ________ ships and planes hasn’t found any wreckage, ________ growing frustration for the families of the 239 people on board.