( ) A teacher works in a ______.
A. school B. science museum C. post office
( )They are talking ______their holidays.
A. to B. with C. about
( )They want _______the city greener.
A. to make B. making C. makes
( )The people are ________in the supermarket.
A. shops B. shopC. shopping
( )______the eve of the festival, people usually have dumplings.
A. In B. OnC. At
( )March is the ______month of the year.
A. third B. three C. to second