用所给词的适当形式填空

①There're many (different) in culture between English and Chinese.

② We can get (little) pollution if we use fewer cars and take more buses.

③ Have you ever planned (take) a really relaxing vacation with your family?

④ Everyone in our class (believe) that we'll win the school basketball match.

⑤ —Hello! May I speak to Mr. Jones?

—I'm afraid you can't. He (fish) with his friends by the lake at the moment.