-Do you know Earth Day?-Sure, it _______ in 1970 to tell us to protect our earth.
#52215
A
gave up
B
sets up
C
was given up
D
was set up
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