“Beneficial” is a B2 level adjective that means to be helpful or useful. Being able to use it easily in the B2 First exam will be very beneficial for candidates.
Sleeping for at least 7 hours every night is (5)…… for your health.
(5) BENEFIT –
Examiner: “Why did you decide to study English?”
Candidate: “Having a good level of English will be very beneficial for my career…”