they had a good time in the park last sun
问题描述：
they had a good time in the park last sun
theyhadagoodtimeinthepark lastsunday.
They have seen each other before.
Be here at six o'clock.
write it down in your notebook.
全部改为否定句.给好评!
答
They didn't have a good time in the park last Sunday.
They haven't seen each other before.
Don't be here at six o'clock.
Don't write it down in your notebook.