SRL for [telegraph]: By using them , teachers -- with administrative blessing -- [telegraph] to students beforehand the precise areas on which a test will concentrate , and sometimes give away a few exact questions and answers .
ARG-M-MNR: By using them | ARG-0: teachers | ARG-M-MNR: with administrative blessing | ARG-1: to students | ARG-M-TMP: beforehand | ARG-2: the precise areas on which a test will concentrate