.“There is a great potential for the development of Sino-U.S. trade, ______ is in line with the interests of the two countries and their people,” Wu said
_______ from the top of the building when the policeman pointed the gun at him.
Out ________, with a stick in his hand.
There ________. And here ________.
________ a beautiful palace ________ the foot of the hill.
---- Where is your uncle’s home? ---- In New York. But he _____ in Boston for four years. A has lived B had livedC lived D had been living