__________ the displays of culture and technology, the Shanghai Expo also showcased the spirit of voluntarism.(志愿者精神)
good manners to say “Sorry” when you knock into someone but no need to say it again and again .
This kind of picture stories worth reading , but novels of that kind not worth reading .
Technology is developing so rapidly that for only a year , my cellphone is out-of-date .
First he made a list of the names of those .Then he began to write the invitation cards .
—Is it that Jack often plays computer games makes his parents worry about him ?—Yes , I think so .