People believed for a long time that the heart was the center of a person's emotions. That is 61 the word “heart” is used in so many expressions about emotional situations.
One such expression is to “l(fā)ose your heart” to someone. When that happens, you have fallen in love. But if the person who won your heart does not love you, then you are sure to have a “broken heart.” In your pain and 62 (sad), you may decide that the person you loved is“hard-hearted,” and in fact, has a “heart of stone.”
If your friend does not seem to understand how painful your broken heart is, you may ask her to “have a heart.” You 63 (ask) your friend to show some sympathy for your situation. Your friend “has her heart in the right place” if she says she is sorry, and shows great concern 64 how you feel.
Your friend may, 65 , warn you not to “wear your heart on your sleeve”. In other words, do not let everyone see how lovesick you are. When your heart is on your sleeve you are showing your 66 (deep) emotions.
When you are frightened or 67 (concern), your “heart is in your mouth”. You might say, for example, that your heart was in your mouth when you asked 68 bank to lend you some money to pay for a new house. If that bank says no to you, do not “l(fā)ose heart”. Be strong-hearted. Sit down with the banker and have a “heart-to-heart” talk: be open and honest about your situation. The bank may have a “change of heart” — 69 may agree to lend you the money. Then you could stop 70 and “put your heart at rest.”