The Smiths ______ their breakfast when the doorbell rang.
Building a new school is one thing, while keeping it running smoothly is quite_______.
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.