The fact that so many people still smoke in public places ________ that we may need a nationwide campaign to raise awareness of the risks of smoking.(2011·江苏)

The students in our school expected ______ more time for reviews and exercises before the College Entrance Examination next year.

The population of China ________ 1.3 billion，and 80% of the population________farmers.

 _______ goes to school with her mother. 

________ as he was, he looked quite calm in that difficult situation.