Relief work and selfless ______ aid continues, which helps deliver needed equipment to the disaster area.

—Are train services now back to ______after last week's snowstorm?—Yes，they are.

I’m surprised that you should have been fooled by such a(an)＿＿＿＿＿trick. 

 It’s ______ to sign up for the cooking contest when you can’t cook a meal by yourself.

Mike was our ________ customer, who used to shop here on Sundays.