单项选择题
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
A.finding B.to find C.finds D.find
A.is B.aren’t C.isn’t D.are