I saw him going into that building.(see sb do（ing） sth)看见某人(正在）做某事
The rainy and cloudy day made me stay at home all day.(make sb do sth)让某人做某事
He had great difficulty doing his homework on time.(have difficult doing sth)做某事有困难great是修饰difficulty的
这些都是考试要考的短语,所以要熟记