题目

英语改错题,请告诉我错误的地方.在问题补充里,请往下看.请按顺序给我答案,谢谢!
1．My friend has spent four years to study mathematics at that college, and he seems to have learned a lot during those years.
2.If anyone happens to come to see me while I am out this evening, please have him to leave a message for me.
3. The Greens were used to have Chinese food during their three months' stay in Shanghai.

提问时间：2021-03-31

答案

前半句的 to study 改为 studying
因为：spend time doing sth 花费时间做某事.


后半句have him to leave 中的 to 去掉
因为：have sb do sth 使某人做某事


have改为having
因为：be used to doing  习惯做某事


保证准确率~