p. 1

must/mustn t and have to/don t have to exercises

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p. 2

must/mustn t and have to/don t have to must expresses personal obligation the obligation is the opinion or idea of the person speaking subjective obligation have to expresses impersonal obligation the obligation is imposed from outside objective obligation must not mustn t it s necessary not to do it total prohibition do not have to don t have to you don t need to do it but if you want you can the choice is yours choose the right verb 1 yesterday i finish my thesis a must b mustn t c had to 2 andy will wait his turn like everyone else a must b has to c have to 3 you ask my permission you are 18 years old and you know what you do a don t have to b must not c doesn t have to 4 all employees of the dish factory know that they be on time for work a must b mustn t c have to 5 i follow the procedures it s my duty a must b have to c mustn t

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p. 3

6 i like holidays because i do homework a have to b mustn t c don t have to 7 brian get up at 5:00 he wants to go fishing a must b have to c has to 8 i ll tell a b c you a secret but you tell anybody else doesn t have to mustn t don t have to 9 we wear a suit because it s a formal party a must b have to c don t have to 10 i wear a nice dress because i want to look good a must b have to c has to 11 we earn money for the dish company a must b have to c must to 12 we earn a lot of money we want to buy a big house a must b have to c don t have to 13 this is very important so you forget what i said a don t have to b doesn t have to c mustn t

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p. 4

check your answers 1 c 2 a 3 a 4 c 5 b 6 c 7 a 8 b 9 b 10 a 11 b 12 a 13 c must/have to por anikaanelis se encuentra bajo una licencia creative commons atribución 3.0 unported.

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