Cho các loại polime sau: tơ nilon-6,6 (1); tơ axetat (2); tơ visco (3); tơ olon (4); tơ lapsan (5); tơ tằm (6). Những loại tơ có chứa N trong thành phần phân tử là

A. (1), (4), (6)

B. (1), (3), (6)

C. (1), (2), (3), (5)

D. (1), (3), (4), (6)

VI/ Read the following passage on native Americans, and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase for each of the blanks from 41 to 50.

WORKING MOTHERS

Carefully conducted (41)_________that have followed the children of working mothers have not been able to shown any long-term problems, compared with children of working mothers stayed at home. My personal (42)_________is that mothers should be allowed to work if they wish. Whether we like it or not, there a number of mothers who just have to work. There are those who have invested such a big part of their lives in establishing a career that they cannot afford to see it lost. Then there are many who must work out of pure economic (43)_________. Many mothers are not (44)_________out to be full-time parents. After a few months at home with a much_________loved infant, they feel trapped and isolated.

There are a number of options when it (45)_________to choosing childcare. These range from child minders and nannies through to Granny of the kind lady (46)_________the street. (47)_________, however, many parents don’t have any choice; they have to accept anything they can get. Be prepared! No matter how good the childcare may be, some children are going to protest wildly if they are left. This is a (48)_________normal stage of child development. Babies separate well in the first six months, but soon after that they start to get a crush on Mum and close family members. Make sure that in first week you allow plenty of time to help your child settle in.

All children are different. Some are independent, while others are more attached to their mothers. Remember that if you want to (49)_________the best for your children, it’s not the quantity of time you spend with them, it’s the (50)_________that matters.

Điền vào số 49

A. do

B.give

C.have

D. make

Jane: I’m supposed to catch the afternoon train.

Jack: __________________.

A. Then you should leave now, shouldn’t you?

B. Let’s leave now

C. Why don’t we leave now?

D. Hurry up!

Read the following passage and mark the letter A, B, C, or D on your answer sheet to choose the word or phrase that best fits each of the numbered blanks from 25 to 29. Fill in the appropriate word in question 26

Reasons to Not Hit Your Kids

  The practice of hitting children teaches them to become hitters themselves. Extensive research data is now available to support the direct correlation (25)_______corporal punishment in childhood and violent behavior in the teenage and adult years. Virtually, all of the most dangerous criminals (26)_____regularly threatened and punished in childhood.

  Punishment gives the message that "might make right," that it is okay to hurt someone smaller and less powerful than you are. The child then feels it is appropriate to mistreat younger or smaller children, and when he becomes an adult, feels little (27)______for those less fortunate or powerful than he is, and fears those who are more so. Thus it is difficult for him to find (28)_______friendships.

  Children learn best through parental modeling. Punishment gives the message that hitting is an appropriate way to express one's feelings and to solve problems. If the child rarely sees the parents handle anger and solve problems in a creative and positive way, he can never learn how (29)______that himself. Thus inadequate parenting continues into the next generation.

(Adapted from "Reasons to Not Hit Your Kids" by Jan Hunt)

A. were

B. be

C. could

D. might