英语题目一道,在线等,快
来源:百度知道 编辑:UC知道 时间:2024/05/11 04:09:06
用can 或able to正确形式填空。
You________not leave this room until you get permission.
You________not leave this room until you get permission.
用can,因为able to 前面必须有be 动词,构成句型be able to.但句中没有,所以用can.
CAN'T确定
can't
able to
able to表示一个动作,而can表示一种可能
cant't
are not able to
not until形式,直到....才....
can=be able to
can