The Chinese abacus(算盘), officially ______ as a cultural heritage at the 8th Annual UNESCO World Heritage Congress, is another symbol of Chinese wisdom.
His words reminded me a woman had told me before.
He _______ his gun under the tree where he was __________.
_______he has got a chance, he might as well make full use of it.
That art center is _______ used to be a factory, ______ millions of tractors were produced.
It is ________ Beth to drink so much; I wonder if she is all right.