Complete with the appropriate phrase: it's worth doing/it's not worth doing.
e.g. It's not worth being dishonest in advertising because people will complain.
1 ... dishonest in advertising because people will complain.
2 ... planning your advertising carefully so that it will be really effective.
3 ... advertising because it will increase your sales.
4 ... working hard because you can get a better job.
5 ... eating fast because you will probably get stomachache.
6 ... going to bed early because you will be fresh in the morning.
7 ... watching TV because there are some very good educational programmes.
8 ... staying up late to finish your homework because you will be sleepy the next day.
9 ... doing your homework in a rush because you will make mistakes.
10... being dishonest because in the end people usually find out.​