Thank you for your help, Linda. You made ________ possible for us to finish the work in time.

Mr Zhang is always ________ others. People all like him very much.

With April 18’s railway speedup, highway and air transport will have to compete with ______ servicefor passengers. [ ]

Beth has a beautiful ______ . Listen! She is singing.

The disappearance of dinosaurs made _______ the evolution and dominance of mammals on the earth.