We choose this hotel because the price for a night here is down to $20, half of_________it used to charge.
that
which
what
how
______, the conference began.
Zhang Ziyi and Wang Feng, both of them ______ in the media spotlight, get romantically involved.
Entering the bookstore, I noticed a girl _______ against the window, with her eyes_____ on her book in hand.
In the middle of February, the weather__favorable for work, the workers began to repair and secure the dam of the river.
All things ______, your sister has better performances than you.