①It's been six years since we last saw each other, you know.
②And this is the first time I've visited your hometown.
③I've seen quite a lot of China and I've visited some beautiful cities.
④But this is one of the most attractive places I've been to.
⑤They've put up a lot of highrise buildings recently.
⑥My wife's just bought a beautiful dress from one of the shops there.
⑦Xiao Li has lived in Xiamen all his life.
⑧The family have lived in the town for twenty years.
⑨Up to now, I've understood everything the teacher said.
⑩He has gone to the Great Wall.