Fill in the gaps with the correct phrases. There are some extra phrases

• The most often
• Least typically
• more willingly
• less commonly
• less costly
• more challenging
• oftener
• the most challenging
• less typically
• the most costly
• less formally
• more often
• least wisely
• most seriously
• most carefully
• least efficiently
• more efficient
• most wisely
• more careful
• least formally

1. [ ]  used word in English is «the».
2. [ ] the members of our staff receive recognition and get promotion during the first month in service.
3. The results are always better if one works
   [ ].
4. In the United States, the languages other than Spanish, French and German, are referred to as
   [ ] taught languages.
5. To any expensive medicine there always exist
   [ ] alternatives.
6. There is no such thing as a
   [ ] university degree.
7. For the evening garden party you should dress
   [ ].
8. This dog will grow up to a small size
   [ ] than not.
9. There is only one known way to deal with the money
   [ ] and that is to be mean.
10. Facing such a risk, you should reconsider your business strategy
    [ ].
11. When you paint the edges, always try to do the job
    [ ].
12. During the last year, the country's economy has been functioning
    [ ], having reached the bottom line.