Only then did I realize that it was foolish to ___ my friends and never contact them. 

The athlete's years of hard working________when she finally won the Olympic gold medal.

I feel it is your husband who _________ for the spoiled child.

 We do not need to wait in line for hours for a ticket this year because we can use the website or hotline to ________ tickets and then pick them up at railway stations or ticket agencies.

In the activity, a few hours of “disability” gave us only a taste of the _______ both physically and mentally the disabled people should overcome.