You shouldn't be too hasty in deciding to get married.
在婚姻大事上你不该过於轻率.
You were quite right to refuse/in deciding to refuse/in your decision to refuse.
你予以拒绝[决定予以拒绝/予以拒绝的决定]是恰当的.
I spent days picking and choosing before deciding on the wallpaper and curtains.
我挑选壁纸和帘子用了好几天的时间.
