（1） B B tough （2） D D benefit （3） C C upper （4） F F company （5） E E pleasure

A.with no people or things inside B.difficult to do or to deal with C.located above something else D.an advantage that something gives you E.a state of feeling or being happy or satisfied F.the fact of being with somebody else and not alone G.a new or difficult task that tests somebody's ability and skill