3.Did you have a cold?Yes,I did.
4.Did your friend do his homework last night? No, he did. 5.Who fell off the swings?
七、What happened to Daming`s head?Sam and Daming went for a bike ride yesterday.And then they were hungry and thirsty.They bought a watermelon.Then Sam carried the watermelon on his bike.Then Sam fell off his bike.And the watermelon bumped Daming`s head.
