He will _____ our class to sing at the school singing contest.
44. With a _____ of snow covered them, the small hills look very beautiful.
45. They are ready to fight the enemy _____ the last drop of their _____.
46. With his own _____ Huang Jiguang, a fighting hero _____ the enemy's machine gun.
47. He earned scarcely enough to keep _____ together.
48. _____ and butter ____ the daily food in west countries.