My uncle’s son is my .
---Carl, why not go and help your sister water the flowers there? ---Why__________? I’m busy myself. Jack is lying on the grass doing nothing.
---___________ is it from here to Yancheng Railway Station? ---About two kilometers.
We all __________how he made such great progress in a short time.
---I think Miss Gao must be in the library. She said she would go there. ---No, she ___________ be there. I have just been there.
The world’s population is getting larger and larger, so scientists will have to ______ new ways to solve food problem.