4.Collocation

1.breach (noun)

an action that breaks a law, rule, or agreement
breach (n.) + of (prep.)
➤ It is a total breach of human rights.


2.apology (noun)

something that you say or write to show that you are sorry for doing something wrong
public (adj.) + apology (n.)
➤ Still no one gives a public apology.



3.appear (verb)

used when saying how someone or something seems.
will (adv.) + appear (v.)
➤ A list of search results will appear.


4.investigation (noun)

an official attempt to find out the truth about or the cause of something such as a crime, accident, or scientific problem
under (prep.) + investigation (n.)
➤ The cause of death is under investigation.


5.gather (verb)

to come together and form a group, or to make people do this
gather (v.)  + information(n.)
➤ He was unusually proficient at gathering information.