4. —Where does your little daughter want to go during her holiday ? —She is always looking forward to _____ to the Wu Yi Mountain.
Rather than _____ on a crowded bus, he always perfers _____ a bike.
As I became older, I came to like ____ things.
The doctor was reading an article ______ the class.
_____ are written _____ English.
The box is _____ what I saw in the shop.