Scientists chose twins for their study because______________.




A.each twin has the same environment as his/her twin
B.they have the same economic background and hence the same opportunities
C.they have the same genetic background, usually with similar intelligence
D.they are born into the same family, hence the same upbringing

What is the main purpose of this passage?




A.To describe a revolutionary technique for constructing wooden houses.
B.To compare methods of constructing wooden houses in various parts of the country.
C.To stress the importance of wood as a building material.
D.To trace the influence of Swedish and British settlers on American styles of buildings.

Choose the best answer that best completes each sentence.
If only I_____ that. I will regret it for the rest of my life.




A.was not doing
B.did not do
C.had not done
D.would not do

Choose the best answer that best completes each sentence.
English is understood more_________ than any other language.




A.largely
B.widely
C.broadly
D.immensely

Choose the best answer that best completes each sentence.
I rang him up to ask___________ he was doing at the moment.




A.how often
B.whom
C.what
D.why

Next year’s auctions should be advertised until 90 per cent of the objects……..sold. This year we stopped publishing ads too early.




A.were
B.will have been
C.will be
D.have been

Since every penny of the grant………………spent on equipment, we started looking for volunteers to do the cleaning.




A.must have been
B.would have been
C.has been
D.had to be

His train………….at 4'p.m. on Tuesday. He doesn’t need to call a taxi. I…………….him to the station.




A.leaves - am going to take
B.will leave - take
C.has left - took
D.is leaving - will take

We’ve never seen our history teacher so angry; he looks as if he…………….!




A.explodes
B.is exploding
C.is going to explode
D.was exploding

I think my wife and I…………….on a small farm when I am retired.




A.will have lived
B.will be living
C.are living
D.have lived