They put forward a lot of plans at the meeting, none of ______ carried out in their work.
He began to take political science __________ only when he left school.
A new __________ bus service to Tianjin Airport started to operate two months ago.
It isn’t socially __________ for parents to leave children unattended at that age.
My parents have always made me __________ about myself, even when I was twelve.
Water can absorb and give off a lot of heat without big changes in temperature, thus creating a __________ environment.