—Oh, Mum, just a few minutes．—Hurry up, Harry, or by the time you pack your belongings, the flight ____.

My brother wants to work in the factory which _________ now.

Unfortunately, when I dropped in, Professor Smith ________, so we only had time for a few words. 

——Mr , Harry, we want to hear what you think about the reform being carried out in our school.——OK, I       to that.

(2013·湖北卷)While intelligent people can often________the  complex，a fool is more likely to complicate the simple.