( ) ________ are all good students in schools.
It’s about 12600 li long . It’s A.the Great Wall B.the West LakeC.the Changjiang River
There a car in the street . A.is B.are C.be
Mexico is of America . A.south B.in the south C.north
San Francisco is of America . A.east B.in the east C.in the west
These pictures in the bag . A.are B.is C.be