As 2021 steadily draws to a close, all of us working on Civilization
are taking a moment to celebrate and reflect on an incredible year. 请教老师,这句话的as表示"原因"还是"随着",表示"随着"是不是主句与从句时态都应为一般现在时?
...的演唱比以前要动听许多。不明白句子中than he has before的时态。按理说,这里的 than he has before 应该是than he has sung before的省略,但无论从哪方面来看,这都有问题:从主句时态sang来看,than后面的时态应该是过去完成时,所以应...