We all feel it is you as well as your wife that ________ for your son’s bad performance at school.

Unfortunately，the band ______ of a singer, two guitarists and a drummer broke up soon.

---We should forgive him for making such mistakes.---You are right, ______  that he is only a new hand.

Oil prices have risen by32 percent since the start of the year,_____a record US $57.65 a barrel on April 4. 

_______ a precious diamond necklace for his wife, Martin could hardly afford a tie for himself．