Answer:
Question 2
Sleep might be an important tool to keep people healthy. is correct
When many of the guests stayed late into the evening
They have changed the world by creating interesting things that amaze us and let’s us do the right things
Examples of Covert in a sentence The spy went to great lengths to make sure his enemies would not discover his covert plans. Because my husband is always snooping into my affairs, I am working very hard to keep his surprise party covert.
this what it means covert :not openly acknowledged or displayed.
