At first the institute refused to purchase(购买) the experiment instrument, but this decision was ______ changed.
A new iphone costs about _________of a second-hand one.
I have already forgotten ______ you bought the computer.
On her next birthday, Jane ______married for thirty years.
A nature reserve for white-flag dolphins was set up in 1992, ________ boats have beenprohibited from sailing around since then.
Time can never ________ from people in London the sadness and heartache caused by thoserecent terrorist attacks.