If he takes on this work, he will have no choice but _____ an even greater challenge .
While you are out, you should keep your doors and windows ___.
___ and short of breath, Andy and Ruby were the first to reach the top of Mount Tai.
What made me ___ was that I got full marks in the Engish test.
After a few months of ___ practice you will really start to see progress.
It is a common ___ for people to fancy others in their own situation.