To be 的用法 什么时候用它?不懂……答:To be 是不规则动词,你必须熟练掌握它的各种形式:am , is , are , was , were , is being , has been , should be , could be , would be , might be , shall be , will be , can be , must be , need to be ...轻易得到的东西你不会珍惜,所以我就不多说了.它的用途主要...
To be 的用法答:To be 是不规则动词,你必须熟练掌握它的各种形式:am , is , are , was , were , is being , has been , should be , could be , would be , might be , shall be , will be , can be , must be , need to be ...轻易得到的东西你不会珍惜,所以我就不多说了。它的用途...