Since the head is the control centre of the body, the word head is used in many expressions. Test your knowledge of the following "heady" expressions by matching them with their meanings.1. keep a cool headbe conceitedbe in a situation too difficult to handlestay calm and think clearly in a difficult situationdo or say as little as possible in order to avoid attention2. cause heads to rollattract attention by looking interesting or attractivegive someone information or a warningappeal to a higher authoritycreate serious trouble for some people3. keep one’s head downdo or say as little as possible in order to avoid attentionstay calm and think clearly in a difficult situationbe out of touch with what is happeningbe deeply in love4. give a heads-upappeal to a higher authoritygive someone information or a warningbe conceitedcreate serious trouble for some people5. have a swelled headbe conceitedattract attention by looking interesting or attractivebe deeply in lovebe out of touch with what is happening6. be head over heelsbe in a situation too difficult to handleappeal to a higher authoritygive someone information or a warningbe deeply in love7. turn headsbe deeply in loveattract attention by looking interesting or attractivecreate serious trouble for some peoplebe in a situation too difficult to handle8. go over someone's headgive someone information or a warningcreate serious trouble for some peopleappeal to a higher authoritybe out of touch with what is happening9. be in way over one's headattract attention by looking interesting or attractivedo or say as little as possible in order to avoid attentionbe in a situation too difficult to handlestay calm and think clearly in a difficult situation10. have one's head in the cloudsbe out of touch with what is happeningbe conceitedstay calm and think clearly in a difficult situationdo or say as little as possible in order to avoid attention