Question

________ you are responsible for the information, you must be very careful. A．Unless B．Whil.

________ you are responsible for the information, you must be very careful. A．Unless B．While C．Since D．Though

Answer 1

C

试题分析：考查连词辨析。A除非，如果..不…；B当…时；然而；C既然；D尽管；句意：既然你负责这些信息，你就必须非常当心。根据句意说明C正确。 点评：连词辨析要在上下文语境中进行考查，根据语境语义搭配辨析。本题要注意unless=if…not…。