根据句意及首字母提示补全单词,使句子完整、通顺.

根据句意及首字母提示补全单词,使句子完整、通顺.
1.-Mary's uncle is the m_______of a big company.
-Really?
2.E_________is very important in our daily life.Don't waste it.
3.-Where is your English teacher?
-I don't know.He answered a phone and then h_______to lave just now.
4.-Write down your a______on the piece of paper,and Iwill write to you later.
-OK.Here you are.
5.-Where did your mother go?
-She p________went to the supermarket,but I an not sure.