动词的时态We( )half an hour for the bus,but it has not come yet.A

1个回答

  • 选择D 不是啥被动语态

    应该是现在完成进行时

    (一)表示从过去某时开始一直持续到现在的动作,并且还将持续下去.

    The Chinese have been making paper for two thousand years.

    中国有2000年的造纸历史.(动作还将继续下去)

    I have been learning English since three years ago.

    自从三年前以来我一直在学英语.(动作还将继续下去)

    (二)表示在说话时刻之前刚刚结束的动作.

    We have been waiting for you for half an hour.

    我们已经等你半个钟头了.(动作不再继续下去)