Lu Xun said, “ The ____ were made by people.”

—How can I use this washing machine?—Well, just refer to the _______.

 The CASS said the scores were based on corporate responsibility and financial reports,. But some people raised__________ about whether the information was reliable. 

The collapse of the World Trade Center has put US economy in a difficult __________.

The boy slipped out of the room and headed for the swimming pool without his parents' _____.