—Did Jack come back early last night?—Yes,it was not yet eight o’clock_______he arrived home.
After his company’s closing down , he lost both his wealth and confidence , and never found __________ of them again .
We are really disappointed to see millions on earth who have nothing but hunger and cold __________ no chance to improve their life .
We are roommates for 3 years and never once __________ .
I will never forget the park __________ I spent so many happy hours there with my parents last summer .
In fact , the hazy weather problem is so severe now that it has aroused __________ nationwide concern about __________ environmental pollution .