After Mandela was free (自由的) in 1990, he chose to shake hands with the people ________ wanted to kill him.
---What’s the time? ---____________________.
---_____ your sister? ----She is in her room
---What color is it? ---________________.
--- Is your favorite subject Math?--Yes, I am good ___it.
—How many ____are there in the box?--Nine.