E. g. There are so many books for me to choose that I don't know which one to choose.

这儿有那么多书可供选择，我不知要选那一种。

Sometimes people spend lots of time trying to choose which one to make the default .

有时人们花大量的时间来选择其中之一，使拖欠。

But with so many moisturizing options available in such a wide price range, how do you know which one to choose?

可是保湿产品种类繁多，价格各异，选哪一个比较好呢？