Were you sick after six hours’ journey on the coach?—Of course. I quickly as soon as it stopped.
Do you know___________ in Ya’an? — On the 20th of April，2013.
I don’t like ____ days because it’s too cold.
These days my classmates are busy ________ ready for the final exam.
Some volunteers from Beijing arrived in Shanghai _____ April 29 to work for the World Expo. [ ]