根据句意用所给单词的适当形式填空。 小题1: It is ______________(nature) for a bird to fly. 小题2: It is ____________(polite) to ask a woman her age in western countries? 小题3:Our English teacher likes reading ____________(educate) books. 小题4: I like ____________(lie) on the grass in the sun in spring. 小题5: Do you think noise _____________(pollute) is a terrible problem? |