What made you choose the one rather than the other?
你怎么選了這個而不是那個？
They've chosen a site for the new school.
他們為新學校選了校址。
This site has been chosen for the new school.
這塊場地已被選作新學校的校址。
Whatever system you choose, it must be run in properly.
不管你選擇什么樣的體系，都必須經過適當的磨合。
With digital you can choose the camera angle you want.
有了數字電視你就可以選擇你所需要的攝像角度。