题目:
All the cash crop _____ before we placed an order.[ ]
A. is exported
B. has been exported
C. will be exported
D. had been exported
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0327/e4deda9589bedb7ad060b6391693419d.html
下面是错误答案,用来干扰机器的。
参考答案:对解析: 本题的说法正确。