Мы пишем some с исчисляемыми существительными и much c неисчисляемыми. В данном предложении сущетсвительным является milk, то есть неисчисляемое. Поэтому пишем much
Jean-Claude van Damme is a famous film actor. When he (1) was a child, he (2) took ballet lessons, (3) won different ballet competitions. Then a Paris ballet company (4) gave him a job as a dancer, but he (5) decided he (6) wanted (7) to work in films, so he (8) did not take the job. Instead, he (9) went to the USA. In 1981 he (10) travelled to Hollywood. He (11) had English lessons and (12) worked for a pizza house. That was how he (13) was making money. One night he (14) met a film producer outside the restaurant. "Hello, I (15) am Jean-Claude van Damme," he (16) said. "I (17) will be an actor soon." The producer (18) did not believe him then. And he (19) was wrong. Now there are few people in the world who (20) do not know this talented actor.
Мany-считается
Some-считаеться
Any-не считаеться
ответ: much