____ in the United States, St Louis has now become the 4th largest city. 
#80941
A
It is the 24th biggest city
B
It was the 24th biggest city
C
Before the 24th biggest city
D
Once the 24th biggest city
推荐题目
Only after Mary read her article a second time _____the spelling mistakes.
#80839
A
did she notice
B
she noticed
C
does she notice
D
she has noticed
On the small island,which is at the entrance to New York Harbor,    .
#79615
A
the Statue of Liberty stands
B
stands the Statlle of Liberty
C
does the Statue of Liberty stand
D
does stand the Statue of Liberty
Not until all the fish died in the river ______ how serious the pollution was.
#83100
A
the villagers did realize
B
the villagers realized
C
did the villagers realize
D
didn’t the villagers realize