網友回答：
but she knows a lot about science.a. a eight-year-old b. eight-year-oldc. eight years old d. an eight-year-old( )8. — _____ you stay in america every summer?—for two months.a. how many b. how often c. how long d. how( )9. she’s good at _____.a. read b. r
溫馨提醒：隨時光變遷，文中所陳述觀點；準確性、難免有所變動，因此文中觀點僅供參考。
