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( carry 的过去式) 搬，拿
carried
(bump 的过去式) 撞伤
bumped
I say buy , buy , buy , buy,
I say bought , bought , bought ,bought .
I say fall , fall , fall , fall ,
I say fell , fell , fell , fell .
I say carry , carry , carry , carry ,
I say carried, carried ,carried , carried .
I say happen , happen , happen , happen ,
I say happened ,happened,happened ,happened
I say bump , bump , bump , bump ,
I say bumped , bumped , bumped , bumped .
Did you yesterday?
play football
Yes , I did .
Did you yesterday?
buy a watermelon
No , I didn’t .
Did you yesterday?
do your homework
Yes , I did .
Did you watch TV yesterday ?
No , I didn’t .
Did you fall off your bike yesterday?
Yes , I did .
Did you go to school yesterday ?
Yes , I did .
Q: Did you ?