Scientists chose twins for their study because ____________________.
A.each twin has the same environment as his/her twin
B.they are born into the same family, hence the same upbringing
C.they have the same economic background and hencethe same opportunities
D.they have the same genetic background, usually with similar intelligence

How were great musicians different from ordinary musicians in their development?
A.Their ability was realized at an early stage andthen nurtured.
B.They practice playing their instruments for manyyears.
C.They concentrated on music to the exclusion of other areas.
D.They were exceptionally intelligent and artistic.

The man who was driving the truck would not admit that he had been at fault, and ______.
A.neither the other driver
B.neither would the other driver
C.neither had the other driver
D.the other driver neither

A cool drink______________ him after his long hot journey.
A.relaxed
B.relieved
C.refreshed
D.recovered

It's time the authorities............something about this problem.
A.do
B.should do
C.did
D.had done

”Have a nice weekend.” - “_________”
A.You are the same
B.The same to you
C.so do I
D.Will you?

When being interviewed, you should concentrate on what the interviewer is saying or asking you.
A.be related to
B.be interested in
C.pay all attention to
D.express interest to

The word intake is closest in meaning to ……
A.desire for
B.ingestion of
C.purchase of
D.investment in

Professor Berg was very interested in the diversity of cultures all over the world.
A.variety
B.changes
C.conservation
D.number

_______________ William Shakespeare is the most widely known.
A.With all writers in English
B.All writers in English
C.All of the writers in English
D.of all writers in English