【请你写出下列单词的过去式,在完成几组练习后总结它们呈现的规律.①put________cut_______hit_______read_______let_______beat_______hurt_______cost_______规律___________________②keep_______sleep_______sweep_______】
请你写出下列单词的过去式,在完成几组练习后总结它们呈现的规律.
①put________cut_______hit_______read_______let_______
beat_______hurt_______cost_______规律___________________
②keep_______sleep_______sweep_______规律_________________
③teach_______catch_______规律________________
④bring_______buy_______think_______规律__________________
⑤begin_______drink_______ring_______sing_______swim_______sit_______规律_______________⑥lend______send_______spend_______build_______规律______________
⑦sell_______tell_______规律_______________
⑧say_______pay_______规律_______________
⑨meet_______feed_______规律_______________
⑩grow_______know_______throw_______fly_______
规律_______________