Part III Vocabulary and Structure (20 minutes)
　　Directions: There are 30 incomplete sentences in this part. For each sentence there are four choices marked A), B), C) and D). Choose the ONE that best completes the sentence. Then mark the corresponding letter on the Answer Sheet with a single line through the center.
　　41 A person's calorie requirements vary ________ his life.
　　A) across
　　B) throughout
　　C) over 
　　D) within

　　42 A survey was carried out on the death rate of new-born babies in that region, ________ were surprising.
　　A) as results
　　B) which results
　　C) the results of it
　　D) the results of which

　　43 Generous public funding of basic science would _________ considerable benefits for the country's health, wealth and security.
　　A) lead to
　　B) result from
　　C) lie in
　　D) settle down

　　44 In a time of social reform, people's state of mind tends to keep ___________ with the rapid changes of society.
　　A) step
　　B) progress
　　C) pace
　　D) touch

　　45 __________ in an atmosphere of simple living was what her parents wished for.
　　A) The girl was educated
　　B) The girl educated
　　C) The girl's being educated
　　D) The girl to be educated

　　46 __________ the calculation is right, scientists can never be sure that they have included all variables and modeled them accurately.
　　A) Even if
　　B) As far as
　　C) If only
　　D) So long as

　　47 My train arrives in New York at eight o'clock tonight. The plane I would like to take from there _________ by then.
　　A) would leave
　　B) will have left
　　C) has left
　　D) had left

　　48 The speech which he made __________ the project has bothered me greatly.
　　A) being concerned
　　B) concerned
　　C) be concerned
　　D) concerning

　　49 Harry was ________ by a bee when he was collecting the honey.
　　A) stung
　　B) stuck
　　C) bitten
　　D) scratched

　　50 The thief tried to open the locked door but _________.
　　A) in no way
　　B) in vain
　　C) without effect
　　D) at a loss