选出并改正下列每句中的错误。( ) 1. Did you helped your mother yesterday?
A B C ______________________________
( ) 2. My mother didn't cooked fish yesterday.
A B C______________________________
( ) 3. In Monday it rained here.
A B C ______________________________
( ) 4. I am short then.
AB C______________________________1. B help 2. B cook 3. A On 4. B was