Question 46: Mark the letter A, B, C or D to indicate the correct answer to each of the following question 6. Tamara has set her_________on becoming a ballet-dancer.

Explanation: set ones heart on sb/sth (idm): determination to achieve someone/something, something

The remaining answers:

head (n): head

feet (n): feet brain (n): brain, brain

Tamara set her mind to becoming a ballet dancer.