The more trees we plant in our city， the （beautiful） Lanzhou will be．
The Communist Party of China （中国共产党） has （it） 100﹣year anniversary this year.
The （seven） Big Data Expo was held successfully in Guiyang in May，2021.
Mary doesn't （real） care if her friends are the same or different.
If I'm available tomorrow afternoon，I （visit）the city museum with my brother.
We couldn't do all the work by （ us）.