It hasn’t been ______ that food from cloned animals is really safe for humans to eat.

Could you please do me a favor—_____—I mean，could you help me

g the news about Neil Armstrong’s death,____．

Why don’t we choose that road to thevillage—The bridge to it ______.

62 A ______is a round stick of wax with awick through it which is lit to give light as it burns