Can I have a talk with you at about Smith?— All right, I ______ to my office from a conference then．I will be waiting for you there．

It happened ________ the morning ________ September 10, 2008. [ ]

A low-carbon（低碳）lifestyle has an effectour daily life. More and more attention has been paid toenergies these days.

This is the most beautiful park I have _______ visited .

I will never forget the people and places _________ we saw in Hong Kong last year．