Read each sentence and circle the relative pronoun which can be omitted.

1. These are the words which are the same in both British English and American English.

2. English is the language which people use the most in the world.

3. The boy who is giving a presentation in English on the stage is my student.

4. Spanish is the language which has the second largest number of native speakers.

5. The exchange student who we invited to join our club comes from the Philippines, so his English is so good.