Kết hợp câu sử dụng mệnh đề quan hệ xác định và mệnh đề quan hệ không xác định. 15. The house is empty now. I used to live there. ………………………………………………………………………………………………… 16.Tet is a festival. Tet occurs in late January or early February. ………………………………………………………………………………………………… 17.Auld Lang Syne is a song. Auld Lang Syne is sung on New Year’s Eve. ………………………………………………………………………………………………… 18.This watch is a gift. The watch was given to me by my aunt on my 14th birthday. ………………………………………………………………………………………………… 19.My friend Tom can compose songs. Tom sings Western folk songs very well. ………………………………………………………………………………………………… 20.We often go to the town culture house. The town culture house always opens on public holidays. ………………………………………………………………………………………………… 21.I like reading books. Books tell about different peoples and their cultures. ………………………………………………………………………………………………… 22.On my mom’s birthday my dad gave her roses. The roses were very sweet and beautiful. ………………………………………………………………………………………………… 23.Judy liked the full moon festival very much. The festival is celebrated in mid- fall. ………………………………………………………………………………………………… 24. Tomorrow I’ll go to the airport to meet my friends. My friends come to stay with us during the Christmas. ………………………………………………………………………………………………… 25.I’m a boy. I’m wearing a white T-shirt. ………………………………………………………………………………………………… 26.My aunt Judy is the woman. She is holding Jack. ………………………………………………………………………………………………… 27.Linda is the girl. She is giving my mom a present. ………………………………………………………………………………………………… 28.My mom is the woman. She is sitting on the chair. ………………………………………………………………………………………………… 29.Uncle John is the old man. He is standing behind Aunt Judy. ………………………………………………………………………………………………… 30. Grandmother is the old woman. She is sitting next to Aunt Judy. …………………………………………………………………………………………………