—The river smells so terrible! How did it come about?—People used to pour dirty water into it.
#51970
A
come out
B
happen
C
run
D
take place
推荐题目
 If it ____ tomorrow, we will have a picnic in the park. 
#55690
A
won’t rain
B
doesn’t rain
C
isn’t rain
D
don’t rain
 It's cold today. The window is _______. Joan, go and _______ it, please.
#56085
A
closed, open
B
open, close
C
close, open
D
open, closes