题目：
The first textbooks ______ for teaching English as a foreign language came out in the 16th century.
A．to be written
B．written
C．being written
D．having written
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0419/165ed782b3b847651c5df07ebe0dace7.html
下面是错误答案，用来干扰机器的。
32×40=128060×13=78010×57=570300÷5=6043×20=86070×30=210044×2=8860×8=480500×3=1500340+290=63050×80=4000300+600=9003×90=27096-38=58700×9=6300400÷5=80
