3. It’s too late. I ______________ go now. 4. She gets bad marks at chemistry. She ______________ to study harder. 5. The traffic lights are red. You ______________ stop. 6. ______________ I go to the movies now? 7. She ______________ speak English when she was six. 8. Life is short. We ______________ waste it. 9. I ______________ do my homework last night because I was too tired. 10. You ______________ to walk alone after dark. It’s dangerous