Exercise 1. Choose the correct form (going to / will) 1.1 think it _______ rain tomorrow. (will / is going to) 2.She _______ visit her grandma next weekend. (is going to / will) 3.They _______ probably arrive late. (are going to / will) 4.Look at those clouds! It _______ snow. (will / is going to) 5.He _______ call you when he arrives. (is going to / will)

Exercise 1. Correct Forms

• 1. I think it will rain tomorrow. (Prediction)
• 2. She is going to visit her grandma next weekend. (Plan)
• 3. They are going to probably arrive late. (Prediction based on current evidence - their lateness)
• 4. Look at those clouds! It is going to snow. (Prediction based on current evidence - the clouds)
• 5. He will call you when he arrives. (Spontaneous decision/offer)

Answer: 1. will; 2. is going to; 3. are going to; 4. is going to; 5. will