.China is playing an important role in the world. That’s_______Laura has come to study Chinese.
The 13:30 train to Shanghai has been put off __________ the heavy storm.
They ___________to put their hearts into study..
When _____ about one of the biggest concerns today, many citizens mentioned the sharp rise in housing price.
It was a _______story, and we all got ________.
--- Hey, Mary, your backpack looks nice. When did you buy it. --- I ____ it for two weeks.