Singapore is a very special country. Singapore encourage bilingualism, so I will not feel so stressful if my English can't meet the standard. Another attraction of this country is that there are many different races living harmoniously here. This shows that Singapore has very peaceful environment and mature policies regarding the racial problems that many other countries are facing. I always heard that Singapore has very strict laws and punishment, so i believe I will be very safe coming to here. Besides, Singapore is famous for its title of "garden city", i think it will be very enjoyable to live among tropical plants and green scenery.

以上是关于新加坡最主要的优点，你可以搜一搜相关资料，当然上面这段只是随便写的，毕竟是口语面试不用太斤斤计较修辞什么的，你可以斟酌的修改一下。