单项选择题
A.and B.whether C.though D.if
A.a never saying die attitude B.an attitude to say never die C.an attitude of saying never die D.an attitude of never saying die
A.in；of B.in；for C.at；for D.for；of
A.including B.included C.includes D.to include
A.the best thing he could do was B.he did his best C.all he could do was D.his best thing was
A.with whom B.with who C.whom D.who
A.how B.that C.it D.us
A.of saying B.for saying C.about saying D.to say
A.Provided B.Even C.Though D.Unless
A.show B.to show C.showed D.showing
A.more B.it is more C.the more D.the most