— It's so cold today.    — Yes, it's       colder than it was yesterday.

----I was riding along the street and all of a sudden, a car cut in and knocked me down.------You can never be _____careful in the street.

Running a company is not _______ a matter of hiring people — they also need to be trained.

When I saw my teacher nodding _______ to me, I calmed down and went on with my performance.

Maria _____ missed the first train so as to travel on the same one as John.