1. Karera no musuko wa sanjū sai desu.   Their son is thirty years old.   I am thirty years old.   I am is thirteen years old.   He is is thirteen years old.   Hint Half-n-half Clue   2. Sono shōgakusei wa kyū sai desu.   That schoolgirl is nine years old.   That student is nine years old.   The school is functioning since eight years.   This schoolboy is eight years old.   Half-n-half Clue   3. Watashi no ojīsan wa hachijū  sai desu.   The old man lived for hundred years.   The old woman lived for hundred years.   My grandfather is eighty years old.   I am eighty years old.   Half-n-half Clue   4. Hakubutsukan no denwa bangō wa nan ban desu ka?   Have I given you my new cell number?   What is the address of the museum?   What is your new mobile phone number?   What is the telephone number of the museum?   Half-n-half Clue   5. Kanojo wa hatachi desu.   Kanojo is eight years old.   She is eight years old.   Hatachi is living here for the last ten years.   She is twenty years old.   Half-n-half Clue   6. Kare no musume wa jūsan sai desu.   She is working since ten years.   His daughter is thirteen years old.   My daughter is twelve years old.   She is thirteen years old.   Half-n-half Clue   7. konbini wa gozen shichi ji kara gogo jūichi ji made desu.   The market is open from 7 o'clock to 11 o'clock.   The convenience store is open from 7 am to 11 pm.   We work from from 9 o'clock to 5 o'clock.   We are working from 7 am to 11 pm.   Half-n-half Clue