When the Indian Ocean earthquake and tsunami(海啸), the worst—ever natural disasters, happened, the people there _____ heavy losses.
There are three girls in the room, ________ is Tom's sister.
I'll never forget the day _______ I bought my own guitar with my own money.
She is just the girl, with _______ my brother came to visit me last month.
Last night we saw two movies, _______ was interesting.
This is the house in _______ I was born thirty years ago.