What might be the purpose of a relaxing holiday？
A. It can not be a special treat.
B. It can be very cheap.
C. It can serve as a welcome change.
D. It means living without luxuries.
【B17】
A. study
B. work
C. learning
D. aim
A best title for this passage might be______.
A. Breathing Diseases
B. Lung Cancer
C. How Smoking Mothers Affect Their Children
D. Smoking Is Not Good for Mothers and Children
It can be inferred from the passage that the author ______.
A. hasn't formed his own opinion on the problem
B. defend the old system which was good enough for our grandparents
C. think that we should treat the modem methods calmly and not overcorrect the old system
D. accept the theories of modem psychology totally
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