Помогите с тестом! К данным английским предложениям подберите подходящую им по

Помогите с тестом! К данным английским предложениям подберите соответствующую им по смыслу правильную глагольную форму.
1.The special system of training economists ... to produce well-preparedexperts.
a)designed;
b)was designed;
c)is designing.
2.At our institute ... scientific circles.
a)are;
b)have;
c)there are.
3.Books on various subjects ... through the library.
a)obtain;
b)be obtained;
c)are obtained.
4.The teaching of Statistics ... according to the syllabus.
a)arranged;
b)is arranged;
c)arranges.
5.The authorities of the University ... school hours almost equally between lectures and practical studies.
a)are divided;
b)have been divided;
c)divided.
6.The undergraduates ... general education subjects as well as special subjects.
a)are studied;
b)study;
c)have been studied.
7.I ... the University in 1997.
a)have entered;
b)was entered;
c)entered.
8.While I ... at the bank I attended the preliminary courses.
a)was worked;
b)was working;
c)have worked.
9.The computer ... in every field of national economy.
a)used;
b)is used;
c)is using.
10.New methods of computation ... at the research center.
a)have introduced;
b)was introduced;
c)were introduced.
11.She ... to become an economist.
a)goes;
b)went;
c)is going.
12.The floor in the bedroom ... with a beautiful carpet.
a)covers;
b)is covered;
c)is covering.
13.He said he ... at our University.
a)will study;
b)would study;
c)studies.
14.She couldnt believe that he ... nothing about their experiments.
a)knows;
b)will know;
c)had known.