We are eating________vegetables per person today as they did in 1910.

Nobody knows for sure how dinosaurs died out 65,000,000 years ago. It _______ because of sudden changes of their living conditions.

Do you play basketball

If you go by train, you can have quite _______ comfortable journey, but make sure you take _______ fast one.

If you listen to English programs every day, I’m sure you’ll _______ make progress in English.