When the policeman stopped us, we all looked questioningly at him, ________.
--He has practiced many times before the driving test. --There ________ not be any difficulty in passing it.
--Why didn’t you come to the cinema with us last Saturday? --Oh, sorry. But I ________ the film.
Thousands of Haitians cheered as the Chinese medical team arrived, many of ________ even cried with joy.
Guangzhou is making preparations for the 16th Asian Games ________ in November, 2010.
______ can be enjoyed from a low-carbon lifestyle until you have a deep understanding of it.