Fill in the Blanks Defining and Non-Defining Relative Clauses1 (B1+)Online version Practice defining and non-defining clauses. by María del Rosario Alonso 1 A friend who lives in is visiting this week . The which opened last year is famous . The who won the prize writes every morning . My , who adopted a dog last month , is friendly . The city that hosts the attracts many tourists . His car , which he bought used , runs well . The singer who performed yesterday has a new album . The book , which you lent me , is on the table . The team that won the match trained hard . Her brother , who studies abroad , called last night .