Who, which, where ,why ,when We are talking about the book ___ we bought a week ago.
I wrote to the friend ……… had a birthday last week.
They will visit the castle​the Princess Diana lived.
Winter is the time of the year​many people suffer from flu.
Do you know the reason​she is so upset?
I can’t understand the reason​you have been late for work.
This is the place​you can find everything.
The university I study is near my house.
This is the reasonI invite him to the cinema.
I remember the dayI went to school.​