The factory was built in a secret place, around _________ high mountains.
China has been pushing the reform of public hospitals ______ all its citizens.
I don’t believe we’ve met before, ________ I must say you do look familiar.
Harrison Ford is thought to be one of the few movie stars ____ as a carpenter before.
_____ an important decision more on emotion than on reason, you will regret it sooner or later.
---This is the first time I _____ my first picture with my own hands. --- It’s time that you ____ a photo of me.