谓语的意思为“建议、命令、要求”如suggest\order\require等需要用虚拟语气,should在此种情况下可以省略
hold当“举办”将的时候是瞬间动词,当“握住”讲时是延续动词;如果要表示一段时间,就不能用hold了,比如:The sports meeting has been on for 2 days. 正确The sports meeting has been held for 2 days.错误