A. goods appear to be overabundant.
B. the country has to supply more money.
C. government may become richer by collecting more taxes.
D. people are forced to give up certain things
A. many of them are not so obedient.
B. a sizable percentage of children in single-parent families thrive.
C. what happens within the family really matters.
D. children in single-parent families are not well fed.
A) how Dr Jarvik studied mental functioning of the twins.
B) what caused mental decay.
C) the results evidenced by Dr Jarvik‘s studies.
D) the difference between middle – aged and older persons
A) In America， Mother‘s Day is a holiday with a very long history.
B) More and more countries are put aside their tradition of celebrating Mother‘s Day.
C) In America， Mother‘s Day is on the second Sunday in May.
D) Throughout the world， Mother‘s Day is celebrated on the same day.
A.eat a balanced diet
B.choose the food that is of nutrition
C.have the habits influenced by the surroundings
D.like to eat the food with a fragrant flavor
A.encourage rats to drink vitamin-enriched water
B.find out rats preference in flavor
C.test whether rats know which drink is good for them
D.demonstrate that vitamins aretasteless
A.The classical Greeks did not know the existence of suicide
B.Suicide has always been prevalent in all parts of the world
C.In today's society, there are quite a number of people who commit suicide
D.Nowadays suicide is not as common as it was in the past
A.are, are B.is, is C.are, is D.is, are
A.are admitted B.is admitted C.are admintting D.is admitting
A. gave B. to give
C. giving D. would give
A. is stoping B. stops
C. will stop D. shall stop
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