I want to be ______engineer, but my best friend wants to be a policeman.

Pierre Curie ______ his own research workand joined Madam Curie in the search for radium

__ US newspaper reported, that fromnext autumn, ________ new computer system will follow the progress ofinternational students at their schools in the USA.

ou read any novels written by the famouswriter Mo Yan — Yes, of course I ______ several ofhis works when I was studying abroad

The professor________at 8 o’clock，but he has not shown up yet，which worries all of us.[ ]