A.were
B.are
C.is
D.has
第1题
Most of the young people in the town______meeting the president at the station now.
A.have been
B.are
C.is
D.will be
第2题
rowth in the number of cars, similar to that which______in America during the 1920s and 1930s.
A.would take place
B.took place
C.had taken place
D.were taking place
第3题
r.
A.do
B.does
C.is
D.are
第4题
The people left in the countries______often those who were too old or too poor to move.
A.are
B.were
C.was
D.is
第5题
Linda Smith has been very helpful to me in the past and I hope she______so in the future.
A.is
B.would be
C.will be
D.be
第6题
A.reaches safely
B.has reached safely
C.would reach safely
D.will have safely reached
第7题
Several centuries ago people did not believe that the earth______round the sun.
A.revolved
B.had revolved
C.revolves
D.has been revolving
第8题
In recent years, a number of communication satellites ______ into orbit about the earth.
A.have been put
B.has been put
C.are already put
D.have been putting
第9题
Attention should______practice in production in addition to theoretical study.
A.be also paid
B.have to also paid
C.be also paid to
D.have to also pay to
第10题
When he was the director in the plastic plant, he ______ together with the workers.
A.has worked
B.had worked
C.had been worked
D.used to work
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