被人们称为重庆“棒棒哥”的郑定祥在新年的第一天,承揽了一个10元工钱的活。与雇主走散后,年近六旬的他身着单衣,挑着羽绒服,在刺骨寒风中苦寻雇主 5 日,终于实现了物归原主的心愿。他说:“缺钱下能缺德”。他的这种“德”集中体现为
Your help made __________ for me to work out this problem.
I don’t think _______ Maths is easy.
Thanks for _________ the new chairperson.
He couldn’t hide his __________ at my success and said bad words about it.
Are you going to __________ this challenge?(挑战)