Упражнение 1. Вставьте глагол в нужной форме, чтобы образовать условные предложения 0-го типа. 1 If you ________ (to drive) along the river bank it ________ (to be) twenty miles out of your way. 2 If you ________ (to take) your mobile phone into class, it ________ (must) be turned off. 3 We ________ (not use) calculators when we ________ (write) tests. 4 If you ________ (to push) this button, the volume ________ (to increase).