Write a letter.
a local company has asked its customers to write suggestions about how a product/service can be improved.
write a letter to the manager of the company. in your letter:
-state what you like about the product/service;
- say what feature of the product/service you find unsatisfactory;
- suggest ways in which it could be improved;
write your letter in an appropriate style at least 100 words​

1)about 23,000 years ago, a single group splintered off from an east asian population. the group, hailing from northeast asia, crossed the bering land bridge between northeast asia and alaska, eventually making their way to the rest of the americas. about 13,000 years ago—much more recent than previous theories—native americans started to split into different groups, creating the genetic and cultural diversity that exists today. 2)as far as i know, there is the theory of the land bridge. 3)they are from asia. 4)- 5)nowadays, native americans live in america

The PRESENT PERFECT TENSE is formed with a present tense form of "to have" plus the past participle of the verb (which can be either regular or irregular in form). This tense indicates either that an action was completed (finished or "perfected") at some point in the past or that the action extends to the present: I have walked two miles already [but I'm still walking]. I have run the Boston Marathon [but that was some time ago]. The critics have praised the film Saving Private Ryan since it came out [and they continue to do so].