It was a pity that the great writer died ____ his work unfinished.
Hangzhou is famous _______ producing silk in China.
—Guess, how much does it cost?—I think it costs 15 and 20 dollars.
—When did your uncle arrive ____ China?—He got to Guangzhou ____ the morning of the 16th of April.
The food my country is quite different that here.
Tom told me his parents had arrived ____ Beijing.