Rewrite the following sentences using participles (Ved, Ving)  and to infinitives (To V)

Exercise 1: Rewrite the following sentences using participles (Ved, Ving)  and to infinitives (To V) .
(Viết lại các câu sử dụng ( Ved, Ving)  and to infinitives( To V) để rút gọn mệnh đề quan hệ)
1. I come from a city that is located in the southern part of the country.
2. The scientists who are researching the causes of cancer are making progress