1. The student who / that sits next to me in the English class is from China.
2. Thank you very much for your email, which was very interesting.
3. Smartphones which have a lot of storage space can store audio books.
4. I talked to the girl whose bicycle broke down in front of the shop.
5. What did you do with the money that / which your mother gave you?
6. We really love participating in discussions which helps us share our ideas and learn from others.
7. The children who / that were playing in the playground are not from our school.
8. My classmate, whose father is a musician, has won the 1st prize in the singing competition.
9. Science teachers who / that use 3D projectors and other devices can easily explain the topics.
10.Mr Minh has created a list of the most useful apps for his classrooms, which is available on his blog.