The task is so hard fore . I don’t know _______________.
____of the land in that district____ covered with trees and grass.
—Must I go to medical school and be a doctor like you, dad?—No, you _______,son. You’re free to make your own decision.
Liu Ying is good at singing. She sings ______the famous singer, CoCo.
This is the school _______ I studied three years ago.
—What kind of house would you like? ,—I’d like __________with a garden in front of__________.