单项选择题
It must have rained last night,（）?
A.didn’t it B.needn’t it C.mustn’t it D.hasn’t it
单项选择题 It’s said that the screen of an i-phone 6 will be a bit bigger than（）of an i-phone 5s.
单项选择题 （） our holiday over, we are back in our classroom for our regular work.
