to become a teacher in a middle school ,it is necessay to go to college为什么用to become,不用becoming

来源:学生学帮网 编辑:学帮网 时间:2024/06/21 03:45:51

to become a teacher in a middle school ,it is necessay to go to college
为什么用to become,不用becoming

因为成为老师这件事还没有发生,所以用to do,to do有表示将来的意思,动词的ing形式有表示现在正在进行的意思,所以不能用becoming