They did a lot of ________ work but refused to take any extra pay.
问题描述：
They did a lot of ________ work but refused to take any extra pay.
A：extra
B：present
C：packet
D：playing
答
They did a lot of ________ work but refused to take any extra pay.
选择A
他们多做了许多额外工作,但是不肯要额外的工资.
意思是,多做,不多收.
建议：一句句子,同样的单词尽量不要出现2次或以上次数.比较拗口.