—Did you have _____ fun in Australia?—Sure. It was _____ unforgettable experience.
_____ the government agrees to give extra money , the theatre will have to close.
----I am sorry to have ____ too much of your time.----That's OK, and I am glad to help you.
Mary and her friends paid_____visit to _______Summer Palace yesterday.
It was back home after the experiment.
is believed that improvement in health care will lead to a stronger , more prosperous economy .