根据所给句子及横线后的汉语意思写出正确形式的单词。

1．An international effort is required to cope with the _______________ （紧急） needs of the earthquake victims．

2．The worst part of the divorce was the _______________ （分离） from his three children．

3．The opening of this section of the road is _______________ （延迟） until September．

4．There are still a lot of problems which need to be _______________ （克服）．

5．You must _______________ （道歉） to your sister for being so rude．