Last term our maths teacher set so difficult an examination problem _____ none of us worked it out.

u think Mom and Dadlate— No, Swiss Air is usually on time.

Look! The clouds are red and orange. They are sobeautiful.–Yes. They show it will be sunnytomorrow.

Is Kate coming to the party this evening—No, she _________ be at the party. She________ to the UK.

It ______ him an hour to play basket ball every day.