— Peter was admitted to a second－class college.— He ________ a top university, but he was addicted to playing computer games.

—You will never believe that it took us two hours to get to the restaurant.—Really? You ________ in a traffic jam.

Why _______ you be so stubborn? You should think over my advice on this matter.

 —Look! A book is on the floor. Whose is it?—It ______be Rick's. It has his name on it.

You _____ read a book in the sun—it'll do harm to your eyes．