The 12 million people in Mexico City woke up on September 19th, 1985, to find their city ______ after the terrible quake.

It’s generally believed that the_________ of the Dragon Boat Festival is to celebrate the great poet Qu Yuan.

He will come to understand your efforts sooner or later. It’s just a matter of _____.

lt seemed such a       that people just stood by watching the old lady lying on the ground suffering pains.

It is said that dogs will keep you _________for as long as you want when you are feeling lonely．