Parents are busy people. If they are working, they are usually not at home 48 when/ after their children return from school. Sometimes it is necessary for a parent to write 49 an after-school note for their children. They sometimes put the note on the kitchen table, the refrigerator, 50 or another place where their children are sure to find it. A note is often a 51 better way to "talk" with a child than using the telephone. For one thing, parents have time to think about 52what they want to say before they write. For53 another, the note lists all the information in one place. It is easy to read again and again People often forget all the details that they 54 hear in a telephone call. Finally, cell phones can be turned 55 off or telephone calls not answered. For these reasons, after-school notes are very popular with parents.
48. 答案：When/After
解析：该空引导时间状语从句，句意为：“当他们的孩子们放学回来的时候/以后，他们经常不在家”
49答案：an
解析：根据空后的单数可数名词note及after以元音音素开头可判断填an
50. 答案：or
解析：该空填并列连词or，并列三个名词
51. 答案：better
解析：由句意，“便条是与孩子交流的更好方式”可判断填better
52. 答案：what
解析：该空引导宾语从句在句中作say的宾语
53. 答案：For
解析：For another为固定搭配，意为“另一方面”
54. 答案：they
解析：该空在句中作主语且代指前面的people。故填they
55. 答案： off
解析：turn off意为“关掉”，即手机被关掉
