Ellamarie58viz Ellamarie58viz English Answered 16. If I____(have) a yacht, I would sail around the world. 17. If David_____ (be) taller, he could even play in NBA. 18. If you____ (be) eighteen years old, you could drive a car. 19. Would you teach me if you____ (know) how to ride a bike?20.. If I____ (see) a spider, I would scream.sana may maayos na sagot, need lung.