the number 作主语

the number 作主语 the number of+名词作主语,谓语动词用单数.而A number of + 名词作主 the poor 作主语时谓语是什么 a number of 和 the number of 做主语时，谓语动词分别用什么形式？ can you read the number,please?(作否定回答) The secretary and principal作主语为什么是单数? the majority of+名词作主语谓语动词用单复 the masses作主语 谓语是单数还是复数? The Olympic games 作主语,谓语用单数还是复数? "the police"作主语谓语动词用单数还是复数? Turn on the radio 用He作主语改为一般将来时 what is the cause of.what 作主语吗