It was several minutes before I was ______of what was happening.

Security cameras are restricted to ________ spaces，such as hallways and exits.There will be no cameras in classrooms，locker rooms(更衣室)or bathrooms.

Chang’e-3 landed on the moon on Dec 14, China became the third country _________ this after the US and the former Soviet Union.

________ you’ve got a chance,you might as well make full use of it

Since then I a member of the family and never from them