21.   The role requires him to do little but look anxious and sweaty, which actors with far less ability could have managed.

22.   The role requires that the performer be both a bag of decaying bones and a man in spiritual torment.

23.   The role requires the usually glib and facile star to play a punch-drunk prizefighter with unsuspected smarts.

24.   These roles require light, transparent and agile voices that can dash up and down scales, dish out arpeggios without a second thought and trill like birds.

25.   This entrepreneurial public role did not require that he be a nice guy, and he was not.

26.   We know that Bullock will clean up well, but the role also requires her to do physical comedy.

27.   William Garber, director emeritus of Fort Worth Theatre, believes some roles require people of particular ethnic backgrounds, while others do not.

28.   A wider European role would also require Europe to act more decisively.

29.   Apart from creating a learning culture, the role requires ensuring the entrepreneurial process and articulating the vision and core values.

30.   International soldiers will stay in Kabul for the time being, he said, because a larger role would require too large a presence.