Don’t believe in those ads that you can master a language in one month. Instead, it is a(n) _______process, which may last for years. 

 To solve the problem, we would appreciate it if you could give us an ______ explanation and compensate (补偿) us.

The writing was not _____, so we could not read it at all.

Mr. Brent is a man with _______ personality—he never seems tired with so much work to do every day. 

. She’s pretty _______ with money. She wouldn’t give even a cent to help the poor child.