English is very important. so I practise ____ it very hard .
visitors will come to Beijing for the 2008 Olympic Games on August 8th.
There are lots of shops on _________ of the street.
I don’t know when he _________ tomorrow. If he _________, I’ll let you know.
Our teacher told us light (光) _________ much faster than sound .
--- Will you please fly a kite with me in the park this afternoon?---_____. I will look after my sister.