In the past, American mothers were at home to take care of their children during the day. Now, (36)______, many mothers are working. More than half of the American women (37)______ young children have (38)______ outside the house.

　　　 American families settle the children care problem in different ways. Some parents permit (39)______ children to stay home alone after school. The parents (40)______ be sure the children, usually not younger than 10 years old, understand (41)______ rules and can deal with emergencies

(紧急情况).Other parents say they would (42)______ permit their children to be at home alone.

They usually (43)________ someone to take care of the (44)________.

　　　 Some parents in the USA find their own way to reduce cost of child care. They join child care (45)______. Each person in the group (46) ______ for the children of other group (47)______at different times. Some parents ask local churches, schools and other social organizations to help (48)______ activities for the children. These children care choices often cost (49)______ or no money. Many American parents, however, still struggle with the problem of (50)______ good child care at a reasonable price.

35. Our maths teacher, including the other members of his family,_______ Shanghai

A. has gone to　　 　　B. have gone to 　　　C. are visiting　 　　D. is visiting to.

34. It’s about the middle of the term and I think I have to _______ the exam.

A. get down for prepare　　　 　　　　B. get down to prepare

C. get down to prepare for　　 　　　D. get down to preparing for

33. ---- May I use your telephone?

　 　----________________________.

A. Not at all　　　 B. Of course not　　 C. Yes, just go ahead　 D. You are welcome