用括号内动词的一般现在时形式填空。 1. He ___________ (get) up at six o'clock. 2. He ___________ (study) hard. 3. Danny sometimes ___________ (go) to school by bike. 4. The earth ___________ (go) around the sun. 5. It seldom ___________ (rain) here in summer. 6. My shirt ___________ (be) dirty. And it ___________ (need) washing. 7. A bird ___________ (fly) with wings. 8. Mike always ___________ (help) the old man. 9. We ___________ (start) school today. 10. Dad doesn't ___________ (like) butter and cheese. 11. Miss Liu ___________ (teach) us English. 12. His father ___________ (do) housework, his mother ___________ (work) in an office. 13. The sun ___________ (rise) in the east. 14. Mary usually ___________ (get up) early in the morning. 15. ___________ the rabbit ___________ (jump) high?  Yes, it ___________.