Companies in Zhongguancun all have their own characteristics, but they all share ______ spirit of creativity and scientific skill that have made Zhongguancun________-success.
Don’t blame him any more. _______, he is only a child.
--The window is dirty. ----I know. It ______ for weeks.
The villagers went out to the mountain __________ the missing child.
There is no doubt _______ he will win.
Having been in hospital for two months,he was going to catch up with his classmates.