词形变换。 1. We all know the boy ________(call) Robinson. 2. Please make the plan before you start________________(write). 3. ____________(plan) ahead can help you do better. 4. What_________ you ___________(do) now? 5. I'll finish my homework during the_____________(one) week of my holiday. 6. I don't know how___________ (have ) fun. 7. Li Qiang is _____________(well) at sport in his school. 8. ___________Your father____________(work) in the factory? Yes, he does. 9. They _____________(not clean) their room often. 10. We all like him. He is polite and_____________(help).