Have you read the book War and Peace ________ Tolstoy?—NoI’ve never heard of it

You can’ t smoke here. Look at the sign.—Oh， sorry. I _______ it.

Don’t touch your eyes, nose and mouth, because they aren’t covered by skin and can _______ the virus more easily.

The Iranian government is accused of some terror organizations in the Middle East by the United States, who can’t not produce firm evidences to prove it．

The boy ____ under the tree ____ to his friend that his cock ____ eggs.[ ]