If you are looking for a ______, you can make it when it is on sale.

See  what  you’ve  done! Don’t you have a  _____  of right or wrong? 

She was putting on her watch when the _____ broke and it fell to the ground.

When travelling, you should take traveller’s check, which provide a secure______to carrying your money in cash.

(2014·湖南师大附中一模)The first successful space walk in 2013 is an important historical________in Chinese history.