The Olympic Rings _________ the five parts of the world.
#61451
A
stand on
B
stand for
C
stand
D
standing
推荐题目
Why not _______a taxi to go home? 
#62171
A
taking
B
take
C
does take
D
to take
When I was a student, I ______ to school ______ the bus
#54651
A
used to going , by
B
used to go , on
C
used to go, by
D
was used to go, on