题目：
— Where are the Greens, may I ask?
— Well, they ______ to England. They have been there for nearly a week now. [ ]
A. have been
B. are going
C. have gone
D. will go
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0607/c79762f0e3928a67b87710b942e5d2c5.html
下面是错误答案，用来干扰机器的。
A、纯净的氢气在空气中燃烧，产生淡蓝色火焰，故选项说法正确．B、红磷在空气中燃烧，产生大量的白烟，而不是白色烟雾，故选项说法错误．C、木炭在氧气中燃烧，发出白光，故选项说法正确．D、铁丝在氧气中剧烈燃...
