单项选择 适中0.65 引用5 组卷792
He realized his mistakes and took action to reduce the loss _______ it was too late.
| A．until | B．when | C．before | D．as |
12-13九年级下·江苏·阶段练习
类题推荐
To avoid the virus (病毒), we should wash hands more carefully ________ we have meals.
| A．so | B．before | C．because | D．although |
He was told that it would be at least three more months ________ he could recover and return to work.
| A．when | B．before | C．since | D．that |
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