我认为斗牛应该被废除。

I think bullfighting should be ___abolished.

国民服役在英国于1962年被废除。

National Service was ___abolished in Britain in 1962.

因此，我建议你不要因任何理由改变或废除任何活动。

Therefore, I suggest you should not change or ___abolish any event for any reason.