十、名词从句

　　1) _______________(他们为什么离开家乡去云南) is still a secret.

　　2) _______________(最让我不解的) was that he spoke English so well.

　　3) _______________(这么做是故意的) became obvious.

　　4) It is not clear yet _______________(谁应该为这件事负责).

　　5) It is none of your business _______________(玛丽与谁订婚).

　　 答案

　　1) Why they left their hometown for Yunnan

　　(考点：主语从句)

　　2) What confused me most

　　(考点：同上)

　　3) That this was done on purpose

　　(考点：同上)

　　4) who should be responsible for this matter

　　(考点：较长的主语从句可以后置，用it作形式主语)

　　5) whom Mary is engaged to

　　(考点：同上)