用can't.
Jim can't be at home.He went to Beijing yesterday.
肯定句中可用may might must could等等,但否定句只能用can't
情态动词表推测猜测时,否定句用什么?Jim肯定不在家,他昨天去了北京.
用can't.
Jim can't be at home.He went to Beijing yesterday.
肯定句中可用may might must could等等,但否定句只能用can't