1 . Knowing ______ reduces the risks of failure and it works like an insurance policy for your own ability. (do)
知道你正在干什么，能降低失败的风险，这就像给自己的能力买了份保险。

2 . It is reported in the newspaper that several new subway lines ______ in Wuhan. (build)
据报纸报道，武汉正在建设几条新的地铁线路。

3 . So fast ______ that we can hardly imagine its speed. (travel)
光传播的速度快到我们难以想象。

4 . Many bad habits can be especially difficult to cure because they are likely               at a very young age.(form).

5 . ________call Nike when you arrive. Just come up to my house. I’ll be at home all day.(there)