Construisez des phrases au present perfect en -ing, avec ou sans for ou since. John /sleep/ two o'clock → John has been sleeping since two o'clock. a. John/sleep / two hours Bas been b. Our neighbours / make noise / 11 p.m. c. Many boys / smoke / the age of 14 d. Retired people / play cards / all afternoon
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b. our neighbours has been making noise since 11 p.m.
c. Many bous have been smoking at the age of 14.
d Retired people have been playing cards all afternoon