The news reporters hurried to the airport, only ________ the film star had left.
The Great Wall travels______ deep valleys, _____ deserts and______ mountains.
Was it at the school gate, if I may ask, _______ you met your friends from your hometown?
China recently control its waters near the HuangYan Island to prevent Chinese fishing boats from ____in the South China Sea
Internet shopping will really _____ when people believe that it is safe.
It is the second time that I ____ in Shanghai. What great changes! It’s years since I ____ here last time.