is it ? A.snow B.snowing C.snows
I ten then. Now I 13.A am was B was am C were am
One day robots will do everything.A一天 B总有一天 C过去一天
Did you ______ a watermelon yesterday? A had B buy C bought
Yesterday, Amy ______her mum cook. A helped B will help C is helping
He naughty now . A. isn’t B. wasn’t C. weren’tx