... (wait)...................................................................for her since half past six. 39. Do you think the population of the world (rise)........................................very fast? ... Lien (not prepare)................................................... her lessons yet. GV: Trieu Thi Kim Thong THCS Tien Kien– 5. They just (receive).....................................................a ... (take)..................................................................... a bus to school before. 9. Next week, my uncle (come)...............................................back home for Christmas....