##  [That or which: That’s essential!](/en/quiz/that-or-which-thats-essential-eng)

Do you have problems choosing between the relative pronouns **that** and **which**? Many people do. Here’s a tip: Use **that** to introduce adjective clauses that provide essential information about the noun they modify. Use **which** to introduce adjective clauses that merely provide additional, non-essential information. (A non-essential clause beginning with **which** is set off with a comma or commas.)

1. Aline really liked the watch ![Placeholder for the answer](/sites/default/files/underscore_15_black-wet.gif) her family gave her as a birthday gift.that

, which

2. Her brother bought the watch at Birks ![Placeholder for the answer](/sites/default/files/underscore_15_black-wet.gif) is located in the Rideau Centre in Ottawa.that

, which

3. Jasmine decided to wear her pearl pendant necklace ![Placeholder for the answer](/sites/default/files/underscore_15_black-wet.gif) she bought in Mallorca, Spain.that

, which

4. Jasmine decided to wear the earrings ![Placeholder for the answer](/sites/default/files/underscore_15_black-wet.gif) matched her pearl pendant necklace.that

, which

5. The cottage ![Placeholder for the answer](/sites/default/files/underscore_15_black-wet.gif) Michel bought is on Sharbot Lake in Ontario.that

, which

6. The 2003 film **The Snow Walker** ![Placeholder for the answer](/sites/default/files/underscore_15_black-wet.gif) won six Leo Awards, was based on a short story by Canadian author Farley Mowat.that

, which

7. Five-year-old Isabella was thoroughly enjoying the gelato ![Placeholder for the answer](/sites/default/files/underscore_15_black-wet.gif) her father bought her.that

, which