Terms for subject General containing test problems

English	Russian
he was stuck by the very first problem on the test	он застрял на первой же задаче в контрольной
he was stuck by the very first problem on the test	он сел на первой же задаче в контрольной
he was stuck by the very first problem on the test	первая же задача в контрольной поставила его в тупик