We have English, math and science Thursday.A.on B.in C.at
Iten then. Now I13. 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
Henaughty now . A. isn’t B. wasn’t C. weren’tx