题目内容
从所给的四个选项中选择最佳答案
Our class ________ a meeting when the lights went out
.[
]A
.is having B.were having C.has had D.have
答案:B
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题目内容
从所给的四个选项中选择最佳答案
Our class ________ a meeting when the lights went out
.[
]A
.is having B.were having C.has had D.have