9, How can I forget that day when you told me you had to leave me alone?
10, I don’t know the reason why she left without saying a word.
11, You want to talk to the girl that has left the city.
12, Here is the book that you asked me to lend you.
13, Mr. Tan is an English teacher who has taught English for 20 years.
14, The car crashed into a queue of people, four of which were killed.
15, All the children like the full-moon very much because the festival is celebrated in the mid-fall.
16, The explorer who discovered America was Christopher Columbus.
17, One of our neighbors whose dog barks at night is horrible.
18, I saw a lot of people and horses who went to the market this morning.
19, That commentator, whose name I’ve forgotten is very well-known.
20, This reporter, whose family I know well is 100% honest.