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

— Will James attend the party? — He has just arrived, but I didn’t know he ______ until yesterday. 

This is the second time Nie Haisheng ________ to be the astronaut who took the glorious task.

— You look tired.— Yes. I ___ non-stop until 8 o’clock.

The mayor ________the diplomat at 4 o’clock tomorrow afternoon.