英语：用make up ones mind造句

3、I have many facts to chew upon before I make up my mind.我在作出决定之前有许多情况要加以考虑。4、I am old enough to make up my own mind.我已经长大了，可以自己拿主意了。5、I can't make up my mind whether to come or not.我不能决定是去呢？还不去呢？