Контрольные задания > Mary (study) hard this year, so she'll pass her exams.
Вопрос:
Mary (study) hard this year, so she'll pass her exams.
Ответ:
Mary has studied hard this year, so she'll pass her exams.
Объяснение: Для Mary (она) используется has, studied - правильный глагол, поэтому меняем -y на -ied.