For a moment nothing happened, then ______ all shouting together.
A.voices had come B.did voices come
C.voices would come D.came voices
What worried the child most was ______ to visit his brother n hospital.
A.his not being allowed B.his not allowing
C.his being not allowed D.having not been allowed
It is clear that in modern society high ______ and demands are placed on students.
A.motivations B.expectations C.standards D.opportunities
Mary is always ready to do some ______ work at the local nursing house in her spare time.
A.responsible B.exhausting C.voluntary D.professional
This restaurant has an inviting, homelike atmosphere ______ many others are short of.
A.where B.when C.which D.what
With our country entering an aging society, ______ the retirement age is probably unavoidable.
A.having delayed B.delaying C.being delayed D.to be delayed
