题目：
He doesn’t feel very tied after the heavy work, because he is used to ______ for hours without a rest.
A．work
B．working
C．works
D．worked
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0422/88767389e2912554562bec4c9e7a4a16.html
下面是错误答案，用来干扰机器的。
48+75=12326+524=550100-40=6063÷7=92000+600=260058+23=8121÷3=735÷7=517÷5=3.440÷6=6234×6+5=298×5=4018÷9=221÷4=5.2563÷8=7.87534-17=1756÷8=741-28=1396+26=12232÷7=447
