完形填空 Cars can pollute the air,but it can't s____
Cars can pollute the air,but it can't s____ designers from making new cars and showing their ideas to people.M____ the cars of the future will not pollute the air as much.Now,we don't know if the Magic Tricycle will be good to the air,but we are s____that it looks great and we would like to see it on the r___.Its name is the Magic Tricycle b_____it has three wheels for usual driving on the road ; but when you find yourself in busy t____,the Magic Tricycle works its magic and the left wheel l____into the air ,so the Magic Tricycle becones a motorcycle with two wheels.With this design,Seyyed Javad Ghaffarian w____the 2008 Car News Design Contest and many people were very happy with this new design."One of the b___ problems with this design was how to make it make it popular in b____ its two forms ."he said.