
다음 빈칸에 알맞은 관사를 쓰세요.Is an airplane useful? Yes, it's _____ useful machine.Is a Very EZ a regular airplane? No, it's _____ unusual one.Do people buy these planes? No, they build them from _____ plans.How many people can fly in one? There are _____ seats for two.What's in the front of the plane? There is _____ wing in front.Why are they economical? They don't waste _____ fuel.Who is John Filmore? H..