— Attention, please. The plane has to be _________ because of the foggy weather.— Oh, bad luck! We have to wait now.
Xu Xia and her teammates are _______ the USA next week.
—I had a headache. I can’t sleep. —_______
My grandpa is very old and isn’t_______good health.
Julie and her brother went to the_______to buy new shoes.
Be careful, ___________ you will fall off the tree .