Question

of course a hurdler will have practiced for many hours before an important race.
options:
will have
will have practiced
have practiced for
practiced for

Explanation:

The question asks to identify the future perfect verb phrase in the sentence. The future perfect tense follows the structure "will have + past participle", and the full verb phrase here that conveys the completed action before the race is "will have practiced".

Answer:

B. will have practiced