These kinds of questions often appear in the exam.

　　這幾類(lèi)問(wèn)題在考試中經(jīng)常出現。

　　Human beings are genetically programmed to learn certain kinds of language.

　　人類(lèi)生來(lái)有學(xué)習某幾種語(yǔ)言的遺傳因素。

　　I like all kinds of music from opera to reggae.

　　我喜歡各種音樂(lè )，從歌劇到雷蓋都喜歡。

　　In crude terms, the causes of mental illness seem to be of three main kinds.

　　簡(jiǎn)略地說(shuō)，導致精神病的原因看起來(lái)主要有三種。