Translate the parts of the sentences in brackets into English. 1)

Translate the parts of the sentences in brackets into English.
1) We had to (пройти пробные экзамены) _____________________________ in all subjects last week.
2) Ive tried hard but, I just couldnt (уяснить все даты) _____________________________ for the history test.
3) You will (Не сделаешь ни одной ошибки) _____________________________ if you check your work carefully.
4) Oh, no! I have forgotten to (брать форму для физкультуры) _____________________________ to school again!
5) To prepare a good presentation, you (обязан отыскать информацию) _____________________________ online.
6) Mark (посещает наш школьный хор) _____________________________, which won the first prize in an international contest.
7) Stop interrupting me! I cannot (сосредоточиться на) _____________________________ my homework!