A:2+2=4
B:2-2=0
C:4-2=2
The place ________ they will visit is far away from here.
Forty minutes _______ for the children to finish all the work.
历时2个多月的第31届中国哈尔滨国际冰雪节在哈尔滨冰雪大世界开幕,哈尔滨多年平均雪期约为( )