Составить четыре предложения со словами: 1) number; 2) to expose (разоблачать); 3) crowd (толпа); 4) spectator (наблюдатель).

A number of people were exposed in front of a big crowd being mere pectators of the act.

I like a film " I am number four " . She Exposed their plan .He wanted to mingle with the crowd . Mary likes to spectator after her little brother