【正文】
in the __ _____ (農(nóng)村地區(qū) ) in 2021. 5. His mother is _______ (生病的 ), so he have to look after her at home. 。 6. Have you _______ (do) anything to keep the water clean?[ 7. Project Hope has built schools and _______ (library). 8. Our city _______ (change) a lot since 2021. 9. The girl left the classroom without _______ (say) anything. 10. All of us want to know how _______ (play) puter games. 。 Liu Sanzi is an _______