【C11】A．moreoverB．unlessC．howeverD．besides

【C20】A．moreoverB．howeverC．thereforeD．furthermore

【C2】A．moreoverB．howeverC．thereforeD．nevertheless

A．WhetherB．UnlessC．If

【C11】A．MoreoverB．HoweverC．AnyhowD．After all

【C12】A．beforeB．unlessC．untilD．once

【C2】A．MoreoverB．ThereforeC．AnywayD．However