VI. Choose the correct variant: 1. Man nature by now.

was conquered
has conquered
conquered is conquering

2. Now the students of our group the properties of this new constructional material.

are studying
is studying
study
studies.

3. They at home now.

are not
were not
is not
were

4. This scientist just a great contribution to the space research.

have made
have maked
made
has made

5. Next month I my first exams at the University.

will take
take
taking
takes