Put the verbs in the correct form to make zero conditional I sentences. 1 If you __ (walk) to school it's good for you. 2 If you __ (not switch)off your computer , it uses electricity. 3 Paper __ (go) yellow if it's in the sun.

1. If you walk to school, it's good for you.<br />2. If you don't switch off your computer, it uses electricity.<br />3. Paper goes yellow if it's in the sun.<br /><br />In zero conditional sentences, the condition and the result are presented as general truths or scientific facts. The condition clause uses the simple present tense, and the result clause also uses the simple present tense.