The key to exercise solutions in chapter 4.7 - English in use for the textbook Wider World 2 - Student's Book with authors Bob Hastings and Stuart McKinlay from Pearson Education
Question
Combine the sentences with relative pronouns.
Answer
This is a robot which / that cleans floors.
She is a woman who / that makes things.
I bought a clock which / that plays music.
That’s the shop where I bought my gloves.
Is that your friend who / that works for Microsoft?