阅读下面短文, 在空白处填入1个适当的单词或括号内单词的正确形式。
Nigeria is a country in West Africa. It has 【小题1】 population of over 180 million, making it the most populous country in Africa. Nigeria is famous 【小题2】 crude oil, music and fashion.
Last year I volunteered in Nigeria for 7 months. My role was to set up youth clubs in primary and secondary schools. The purpose of the youth clubs was 【小题3】 (teach) children life skills such as teamwork, science and maths. It was a(n) 【小题4】 (enjoy) experience. I got to help other people and learn about Nigerian culture first-hand. In particular I learnt about Nigerian clothing and languages.
As well as 【小题5】 (wear) Western clothing, such as jeans and T-shirts, Nigerians also wear traditional clothing. Traditional clothing 【小题6】 (be) bold with bright colours, eye-catching patterns (图案) and unique shapes. Nigerians wear traditional clothing on Fridays and Sundays, and for special occasions like weddings. They either make the clothes themselves or have them 【小题7】 (make) by a tailor (裁缝).
The official language in Nigeria is English. English 【小题8】 (introduce) to Nigeria when Nigeria became part of the British Empire in 1901. English is 【小题9】 (main) spoken in big cities. Outside of these cities people speak lots of other languages. In fact, there are over 500 languages 【小题10】 are spoken in Nigeria. These languages come from different ethnic (种族的) groups.