英语题（用所给词的适当形式填空）

英语题（用所给词的适当形式填空）
1.He seems _____ of them,but they both began the same work at the same time.(tired)
2.The boy told me that his mother gave _____ to him on September 1st,1994,so I know he is fourteen years old.(bear)
3.The parents feel quite worried to hear their son's ______.Now,they are telephoning the police and their relatives for help.(appear)
第二题我不太理解，gave 是不是有个搭配？
我认为这里应该用个名词，

1,the most tired 原因是 “他们”中“最累的”.翻译为：他好像在他们中是最累的,但他们都在同时开始同样的工作.
2,birth 这个是一个固定词组：give birth to sb.表示“生了谁谁谁”
3,disappearance 显然填一个名词,appear的名词形式是appearance.意为“消失”.
补充：birth就是名词啊,give birth to .