It is required that employees in the company have to have a good__________ of English. 

I do hope that you can give me some good _______ on how to improve my spoken English. 

In Scandinavian countries it is common ____ for the husband to stay at home to look after the baby.

--- Can you shoot that bird at the top of the tree?--- No, it's out of ____.

It’s obvious that his ______ to the problem is wrong, so we’d better try another way to solve it.