Please don’t ask me to solve mathematical problems; they are beyond my ____.

It is a fact that there is a     towards regional cooperation.

Less than twenty percent of the employees in their company  are women.That is to say，women are in the____.

Electricity, like other forms of ______, has greatly increased in price in recent years. 

 It came as a great _______ to the parents that their son finally came back safe and sound.