【单选题】
The professor has been [填空]at the university for over thirty years.
①
teach
②
taught
③
teaching
④
will teach
【单选题】
19. The American people _____ a president every four years.
①
choose
②
elect
③
pick
④
select
【单选题】
People in Anhui are proud of [] they have achieved in the last ten years.
①
that
②
which
③
what
④
how
【单选题】
The prices of the agricultural products have been ____ steadily in the past few years.
①
risen
②
raised
③
arisen
④
aroused
【单选题】
3. He said he had ______ this subject for ten years.
①
taught
②
pursued
③
demanded
④
afforded
【单选题】
Before?he came to China, he??[填空]Chinese for three years.
①
have learned
②
had learned
③
learned
④
learning
【单选题】
Reforms have brought about rapid [] growth in China in recent years.
①
economical
②
economic
【单选题】
The population of many Alaskan cities has __________ doubled in the past three years.
①
larger than
②
as great as
③
more than
④
as many as
【单选题】
—Are you a teacher?—No, but I ________. I worked in a middle school for three years.
①
am
②
will
③
do
④
was