The discovery of gold in California        a rush to get there.
#74968
A
set off
B
set up
C
set out
D
set in
推荐题目
My patience is ________. Don't keep me waiting any more.
#64409
A
gathering up 
B
breaking out
C
running out 
D
keeping up
My command of English is not ____ yours.
#82017
A
as half as
B
so half good as
C
good as half as
D
half so good as