The windows haven’t cleaned for a long time. They need ______.

I am interested in traveling. It is ______ but ______.

. The 2010 Shanghai World Expo is well worth ______.

. Either you or the headmaster ______ the prizes to the gifted students.

. Don’t have the lights ______ all day long. It is a waste of electricity.

. I guess many a football fan ______ watching 2010 FIFA World Cup South Africa.

--Mike is always working hard and has made greater progress recently.

--______ he got the first prize.

This is not the dictionary which I ______ .

--Is there anything else that I can do for you?

--No, thanks. I am very ______ with what you’ve done for me.

--Could you tell me how I can get to the nearest park?

--______ down this street and turn left ______ the second crossing.