如果主语是单三,接了个to后在加动词要单三么
问题描述：
如果主语是单三,接了个to后在加动词要单三么
例如,Then she hopes to study medicine in a foreign university to ---------（improve） herself
improve要加s吗,求解答
答
to do是固定搭配,不受主语影响的