It’s too late to go to the basketball match now;         , it’s beginning to rain.

Kim Jong un , who attended the 2012 New Year’s concert on Sunday, thanked the performers and spoke      of their successful performance.

The traffic problems have severely affected economic development. ________, we must spare no efforts to solve them.

He tried his best to solve the problem, _____ difficult it was.

The opening ceremony of the 29th Beijing Olympic Games was _____ that everybody was greatly impressed_____ it.

---- Do you think it's a good idea to make friends with your students?
---- _____ , I do．I think it's a great idea．

–This summer is very hot.
--Yes, but it’s not __________ as hot as last summer.

All of us are_____aware of the cause of this failure, so do not make the same mistake again.

Next to biology , I like physics ________.

Anyone, whether he is an official or a bus driver, should be    respected.