Определите время глагола и поставьте 3 специальных вопроса к предложениям.
1) I have made some mistakes in this exercise.
a) Who
b)Were
c)How many
2) The doctor wisited his patients at home an hour ago.
a) When
b) Where
c)Whom
3) Human heart pumps blood through the body.
a)Where
b) What
c) What

1) past simple/ 1)who have made some mistakes in this exercise2)where were made some mistakes 3) how many mistakes  were  made in this exercise2) past/ when the doctor visited  ....where the doctor visited a patientWhom a doctor visited3)  where a heart pumps bloodwhat shakes the heart pump