Составить два предложения во времени past simple,одно с правильным глаголом ,другое с неправильным глаголом.поставить эти предложения в отрицательную форму и задать 5 типов вопросов(разделительный вопрос,вопрос к
подлежащему,общий вопрос,отрицательный вопрос,специальный вопрос,альтернативный вопрос).

1. last saturday i helped my mother about the house.

last saturday i did not help my mother about the house.

did i help my mother about the house last saturday? (общий).

who helped my mother about the house? (вопрос к подлежащему).

when did i help my mother? (специальный).

did i help my mother or my grandmother last saturday? (альтернативный).

last saturday i helped my mother about the house, didn't i? (разделительный).

2. he bought a present for mary yesterday. 

he didn't buy a present for mary yesterday. 

did he buy a present for mary yesterday?   (общий).

who bought a present for mary yesterday? (вопрос к подлежащему).

what did he buy for mary yesterday? (специальный).

did he buy a present fir mary or for kate yesterday? (альтернативный).

he bought a present for mary yesterday, didn't he? (разделительный).