A-A+
The guards ______to see her I. D. before they
问题详情
The guards ______to see her I. D. before they allowed her in the building.
[A] demand [
B ] demanded
[C] had demanded
[D] will demand请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：B
30．B【精析】句意：在他们进楼之前，保安查看了他们的身份证。本题中用的是过去时态，检查身份证发生在进楼前，时间在过去的过去，而C为现在完成时，A为一般现在时，D为一般将来时，只有B为一般过去时。故选B。
