1 . The audience applauded enthusiastically, and she came back on stage to ________ (再次鞠躬致谢). (根据汉语提示完成句子)

2 . 他们必须通过调查研究，来使自己了解到被遗漏的那部分情况。
They must use research to__________ themselves __________ the missing parts of the story.

3 . To______________________________ leaving so early last night, I brought you a little gift. （道歉）（根据汉语提示完成句子）

4 . Many people went to cities to________(发财)．(根据汉语提示单词拼写)

5 . His father got some tea towels and tape from their house. John used these to _______ to Ms. Slade's hands. (根据句意填空)