If you don’t go to the zoo, I won’t go,________.

People often live a hard life _________.

Don’t lose _____ in computer games, boys.

I want to write __________ article about the great inventors in the world. Can you help me?–Sorry, I don’t know much about __________ topic.

Are you still working in that company, Mary?—No, it is ten months ____ I worked there．