单项选择:Mary told me that she()morning exercises every day A does B have done C will do D is doing 此题选A,不过我想要错因
问题描述:
单项选择:Mary told me that she()morning exercises every day A does B have done C will do D is doing 此题选A,不过我想要错因
答
介绍客观事实,用一般现在时