A.refusing
B.to be refused
C.being refused
D.having refused

A.take us in... begin
B.had taken us in... began
C.has taken us in... began
D.took us in... begin
A.his postponing making
B.his postpone making
C.his postponing to make
D.him to postpone to make
A.so as to
B.such as to
C.so that
D.such that