39. study for an English test为英语考试而学习

38. visit my aunt拜访我的姑姑

37. feed some sheep养许多绵羊

36. go to the beach去海滩

35. by the lake在湖边

34. let sb. do sth. 让某人做某事

33. start to do/doing sth.开始做某事

32. so＋形容词/副词＋that从句 如此……以至于……

31. keep＋sb./sth.＋形容词/副词/介词短语 使某人/某事物保持……

30. 时间段＋ago ……以前