1. back to square one - to start something over again
2. from the ground up – to start a business, project, or something else from zero
3. cut-throat - something that is very intense, aggressive and without mercy
4. a game plan – a particular strategy or way of doing things
5. hit the nail on the head - to do or say something correctly.
6. loophole - an ambiguity or inadequacy in the law or a set of rules. 

*Dispones de más Ejercicios de Inglés Comercial y de Negocios
con respuesta para practicar.