There was a big forest fire last week, but nobody knows how it        .
#66371
A
took place
B
turned up
C
broke out
D
broke up
推荐题目
—How did you find him out?—I ______ his name by chance on the list.
#82788
A
came down
B
came about
C
came up
D
came across
Go back home now, Mary. Your parents ______ your safety.
#63864
A
are concerned about
B
are concerned with
C
are concerned on
D
concern of