Too Good to be True

Some say you can do it in seven days, others promise success in 24 hours, or you may prefer to take (0) ... time and do it in 5 weeks. What are we talking about? Believe it (1) ... not, these periods (2) ... time refer to language learning courses that promise excellent results in less time (3) ... it takes to say 'Bonjour'!
However, the advertisements of these companies are not necessarily (4) ... best guide and if you don't know what to look for in a good course you could be left with little (5) ... than a large bill.
A complaint was recently made to a consumer rights group (6) ... WhizzLearn Systems, a language school chain, and the company has been forced to remove its claim that its technique is ten times better than any (7) ... method. The Managing Director of WhizLearn Systems said (8) "... we still believe our claim is true, we are willing to change our advert. But the fact remains, if you spend 3 hours (9) ... day for 5 weeks on our language course you will soon be speaking the language. What we (10) ... have done was to make (11) ... clearer in the advert. Then we wouldn't (12) ... had these annoying complaints".