Complete the sentences with the correct form of the word in brackets.

1.The blood sample was sent to the laboratory for analysis (analyse).
2.The student's work has improved consistently (consist).
3.The decision (decide) was taken early this morning.
4. The students are studying economics (economize).
5.The company wants to involve (involve) as many people as possible in the discussions.
6. The discussions were very productiv (produce).
7.Costs have risen significantly (signify).
8.Experiments will be carried out to test the theory (theorize).