根据句意和中、英文提示写出单词的正确形式。

小题1:Many__________（登山者）will take part in the coming climbing competition.

小题2:My father is good at cooking ________(tasty)food.

小题3:His grandfather was ill yesterday but this morning he felt even          .

小题4:Many people lost their               in the big fire in 1970.

小题5:It’s necessary for us to      (keep somebody/something safe from danger )wild animals.

胫骨中下1/3交界处易骨折，其主要原因是（）

A.胫骨形状有棱角

B.负重量较大

C.位于皮下软组织少

D.易受直接或间接暴力

E.骨的形态转变移行处