He makes it a essential to put some money aside each month.

It sounds like a good plan, but there are some _____ difficulties in carrying it out.

From the _____ expression on her face, we knew that she was very _____ with the result.

It was really _____ of your brother not to play the guitar while you were preparing your lessons.

Jack has had no ________experience of this kind of job，but he got the job offer just due to his honesty.