The number of college graduates in a country _____ its cultural standard nowadays.

The number of students in our school _________ by 5 % every year

.—Did you return Fred’s call?—I didn’t need to _________ I’ll see him tomorrow.

_________ I finish my homework now,mum–No,you _______.But you must finish it before seven o’clock.

He plays basketball so well! Who taught _______—He learnt it by _______.