|
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 | 
