If you ask many different questions, you will________all the information you need to know.

(2013·湖北高考)While intelligent people can often ________ the complex, a fool is more likely to complicate the simple.

  At the opening________of the school, our headmaster gave a short speech.

He was in poor health, so the doctor _____ him to drink wine.

 The number of speech pathologists(who help people who have problems speaking)      double by the year 2012.