___________ giving a general introduction to computers, the course also provides practical experience.

We volunteered to collect money to help the ______ of the tsunami.

If you build a house with good_______ , it will last long.

A sense of __________ is the basic requirement for people working in the service industry, such as education and health care.

.---How long did Mary work here?---For half a year, but she didn’t leave us much ____. We hardly remember what she is like.