Slide 1 Slide 2 (1) Slide 3 1.What's the difference between a monkey and a flea( )? 2.What is black when it is clean and white when it is dirty? 3.What 5-letter word…
Slide 1 Slide 2 What did the people use as vehicle in the past ? sedan chair Slide 3 What about now ? Slide 4 What kind of vehicle will we use in the future? a solar energy…