英语单选,要求：说明理由、
1．I　think　i　will　sit　in　a　quiet　place　in　london,＿＿＿what＇s　going　on．
A．to　watch　B．watching　C．watch　D．watched
2．We　can　learn　a　lot　about　people,places,history　and　special＿＿＿［time］from　stamps．
3．Early　to　bed　and　early　to　rise＿＿＿a　man　healthy．
A．make　B．makes
4． Do　you　want　to　be　healthy?＿＿＿．Smiling　can　help　you　stay　healthy．　
A．Smiling　B．Smile　C．Smiled　D．To　smile．
5． The　teacher　as　well　as　his　students＿＿＿　invited　to　the　party．
A．was　B．were
6．The　waiting　room＿＿＿［crowd］　with　many　passengers　and　bags．