—Do you often visit your grandpa in your free time? —No,he___________for a few years. A.died B.has died C.has been dead
— Could you tell us ______ ? —About two weeks.
The first thing ______ we should do is to tell him the news.
What way can you think of ______ the mice in the room?
Yuan Longping, a great person in China, _____as “father of hybrid rice”
______ the work is difficult, all the workers are keeping on working .