Nowadays, more and more students find it hard to learn English and some of them are afraid of taking an English exam. But having great English skills will help us a lot. In order to improve your English, you shouldn't               .

①only learn grammar rules or remember more long words

②learn more about the culture behind the language

③use Chinese characters (汉字) to show the pronunciations of the English words

④keep an active attitude about English

⑤hardly speak English in public because of being afraid of making mistakes

A、②④⑤

B、①③⑤

C、①③④