It is reported that Russia uses____ energy as Uklaine.

The old rules have to be    _____because they only applied to the circumstances that existed when they were made a hundred years ago.

—What about the result of your final examination?—Not so bad. Not so good as my parents expected, ________.

I am ________ about what I say because careless remarks are likely to hurt others’ feelings

This book ____ 12 units, _____ the unit of Music.