1.this is the first time (that) I came to China
2.there was such a period of time when I hated to talk to others
3.there are two books that talk about the knowledge of the space
4.the present that you gave me is so beautiful
1.this is the first time (that) I came to China
2.there was such a period of time when I hated to talk to others
3.there are two books that talk about the knowledge of the space
4.the present that you gave me is so beautiful