TWE点睛之笔中的句式疑惑，大家帮我解答一下吧

heloise

1 Many city residents complain that it is so few buses in their city that they have to spend much more time waiting for bus, which is usually……

2 There is no denying the fact that air pollution……

3 Although this view is wildly held， this is little evidence that……

我想问一下，这些红色的字体部分，是不时在句式或者用法上有错误啊？如果不是，能不能帮我指出一下啊，谢谢