Укажите предложения с причастием в функции обстоятельства: a) before examining the patient the doctor questions him thoroughly. b) while listening to the patient's heart the doctor heard a soft systolic murmur. c) when asked about the cause of a duodenal ulcer, the student couldn't answer. d) on having received the results of analyses the doctor made the diagnosis. e) if arrested in time almost any disease can be cured.

a) Before examining the patient the doctor questions him thoroughly.
b) While listening to the patient's heart the doctor heard a soft systolic murmur.
c) When asked about the cause of a duodenal ulcer, the student couldn't answer.
d) On having received the results of analyses the doctor made the diagnosis.
e) If arrested in time almost any disease can be cured.