1)Your headache will go away if you ... (take) some aspirin. 2)if i ... (eat breakfast this morning, i woukd have been able to concentrate better on my maths test. 3) if George ... (exercise) regularly, he would be in better shape. 4) The operator ... (connect) you to the emergency service you want if you dial 999.

1)take
2)eat
3)exercise
4)will connect