当别人和你说：How old are you ?时，你的回答是：
A.I’m fine,thank you!
B.Good morning
C.I’m fine,thank you.
Therelots of children in the classroom .
A.is B.are C.be
It’s about 12600 li long . It’s
A.the Great Wall
B.the West Lake
C.the Changjiang River
Therea car in the street .
A.is B.are C.be
Mexico isof America .
A.south B.in the south C.north
San Francisco isof America .
A.east B.in the east C.in the west